Derm net - What is cellulitis? Cellulitis is a common bacterial skin infection of the lower dermis and subcutaneous tissue. It results in a localised area of red, painful, swollen skin, and systemic symptoms. Left untreated, cellulitis can be life-threatening. Similar symptoms are experienced with the more superficial infection, erysipelas, so cellulitis and erysipelas …

 
Derm netDerm net - Acute febrile neutrophilic dermatosis is an uncommon skin condition characterised by fever and inflamed or blistered skin and mucosal lesions. Neutrophilic dermatoses are autoinflammatory conditions often associated with systemic disease. Acute febrile neutrophilic dermatosis also has the eponymous name, Sweet syndrome or …

Basal cell carcinoma (BCC) is a common, locally invasive, keratinocyte cancer (also known as nonmelanoma cancer). It is the most common form of skin cancer. BCC is also known as rodent ulcer and basalioma. …Central Centrifugal Cicatricial Alopecia (CCCA) is a form of scarring alopecia on the scalp that results in permanent hair loss. It is the most common form of scarring hair loss seen in black women. However, it may be seen in men and among persons of all races and hair colour (though rarely). Middle-aged women are most commonly affected.DermNet features a database of thousands of pages covering almost every known skin condition. You'll find these below along with pages on treatments, histopathology and …DermNet NZ is a comprehensive online resource for skin health information. Learn about the causes, features, diagnosis, and management of different types o…Scabies is a transmissible skin disease caused by the ectoparasitic mite Sarcoptes scabiei var. hominis. This variant infests humans only; scabies cannot be caught or transferred to other animals. Scabies is a highly contagious infestation of the human epidermis. Scabies was described by Aristotle who likened the disease to ‘lice of the flesh’. Scalp psoriasis is a skin condition characterised by red, thickened, well- demarcated patches or plaques with overlying silvery-white scales, affecting part or all of the scalp. It can be contained within the hairline, though frequently affects the back of the head, or extends onto the forehead ( facial psoriasis ), ears, or neck. Cutaneous squamous cell carcinoma (SCC) is a common type of keratinocyte cancer, or non- melanoma skin cancer. It is derived from cells within the epidermis that make keratin — the horny protein that makes up skin, hair and nails. Cutaneous SCC is an invasive disease, referring to cancer cells that have grown beyond the epidermis. Dyshidrotic eczema (pompholyx) is a chronic, recurrent condition and appears as small, deep-seated, fluid-filled blisters (vesicles) on the sides of the fingers, hands, and feet. The vesicles are small (1–2mm), often symmetrical, with no associated erythema, and they do not occur elsewhere on the body. Vesicles may coalesce into larger blisters.Dyskeratosis congenita. Fungal nail infections. Habit-tic nail deformity. Leukonychia. Lichen planus nail images. Median canaliform nail dystrophy. Medical nail avulsion. Melanonychia. Melanoma of nail unit.Xanthomas are usually a skin sign of disorders of lipid metabolism (dyslipidaemias) or occur in histiocytosis; the former is the focus of this page. Xanthomas typically affect adults, although children with familial … DermNet is a worldwide clinical resource website about dermatology and skin conditions. Its co-founder and former editor-in-chief is dermatologist and Adjunct Associate Professor Amanda Oakley . [2] The website was launched in 1996 under the umbrella of the New Zealand Dermatological Society , and as of 2017, around 2 million people access the ... Dermoscopy or dermatoscopy refers to the examination of the skin using skin surface microscopy, and is also called ‘epiluminoscopy’ and ‘epiluminescent microscopy’. Derm (at)oscopy is mainly used to evaluate pigmented skin lesions. In experienced hands it can make it easier to diagnose melanoma. Psoriasis is a chronic inflammatory skin condition characterised by red and scaly plaques. It is classified into several types and can be treated with biological drugs. Learn about its causes, clinical features, diagnosis and treatment options from DermNet, a comprehensive online dermatology resource. What is rosacea? Rosacea is a chronic inflammatory skin condition predominantly affecting the central face and most often starts between the age of 30–60 years.. Rosacea is common and is characterised by persistent facial redness. It typically has a relapsing and remitting course, with symptoms controlled by lifestyle measures, general skin care, medications, …A melanocytic naevus (American spelling ‘ nevus ’), or mole, is a common benign skin lesion due to a local proliferation of pigment cells ( melanocytes ). It is sometimes called a naevocytic naevus or just 'naevus' (but note that there are other types of naevi ). A brown or black melanocytic naevus contains the pigment melanin, so may also ...Chickenpox is a highly contagious viral infection that causes an acute fever and blistered rash, mainly in children. Chickenpox is also known as varicella. The name may be derived from the French term for chickpea, chiche pois. Another theory is that the word 'chicken' was derived from a slang term for 'child'.Mycosis fungoides (MF) represents 50% of all primary cutaneous lymphomas and 60-70% of all cutaneous T-cell lymphomas (CTCL). However, it is an uncommon condition with an estimated incidence worldwide of 6.4 per million. Onset is usually in late adulthood ( median age 55–60 years) with a male predominance (2:1) in white patients.Acne products should be applied to all areas affected by acne, rather than just put on individual spots. A thin smear should only be applied to dry clean skin at nighttime. Acne products may work better if applied in the morning as well. They often cause dryness particularly in the first 2–4 weeks of use.Pruritus is the medical term for itch. Itch is an unpleasant sensation on the skin that provokes the desire to rub or scratch the area to obtain relief. Itch can cause discomfort and frustration; in severe cases it can lead to disturbed sleep, anxiety and depression. Constant scratching to obtain relief can damage the skin ( excoriation ...On DermNet. Diagnosis of scalp rashes; Pityriasiform seborrhoeide; Sebopsoriasis; Pityriasis versicolor; Malassezia folliculitis; Dermatitis; Psoriasis; Pityriasis amiantacea; …Dermatology: 2-Volume Set. Edited by Jean L. Bolognia et al. 4th Edition. This is a popular text, encompassing comprehensive, authoritative coverage of basic science, clinical …Welcome to DermNet, the world's leading free dermatology resource. Scroll through evidence-based information on dermatological diseases (skin conditions), procedures, and treatments. Originally launched in 1995, this site continues to evolve and develop over time. (over 8000 images) - Well organized and easy to navigate, DermNet presents a large number of images and allows for their use in live lectures. High resolution images are available for publications upon request. (over 6800 images) - Search the database for ... A venous lake is usually easy to diagnose clinically by its appearance. The colour disappears on compression of the macule or papule due to the clearance of blood from the dilated venule. This is most easily seen using a glass slide or the lens of a contact dermatoscope. A venous lake has a structureless blue or purple appearance on …Athlete's foot is a term often used to describe a fungal infection (or dermatophytosis) of the foot ( tinea pedis ). It most often results in peeling skin and fissuring between the toes (the toe clefts ). The cleft between the fourth and fifth toes is the most frequently affected. Fungal infection is not the only reason for peeling and ...Rhinophyma is a skin condition affecting the nose in which the skin is thickened and the sebaceous (oil) glands are enlarged. The skin appears skin coloured or red and often has prominent blood vessels, which may be thin and red ( telangiectasia) or larger and purplish in hue ( venulectasia ). The affected skin may be bulbous, pitted due to ... Hand, foot, and mouth disease (HFMD or HFM) is a common, self-limiting, viral infection that causes blisters on the hands, feet, and inside or around the mouth. It mainly affects children under the age of 5 years. HFMD, also called enteroviral vesicular stomatitis, occurs sporadically worldwide. Epidemics are most common during warm weather ... Dyshidrotic eczema (pompholyx) is a chronic, recurrent condition and appears as small, deep-seated, fluid-filled blisters (vesicles) on the sides of the fingers, hands, and feet. The vesicles are small (1–2mm), often symmetrical, with no associated erythema, and they do not occur elsewhere on the body. Vesicles may coalesce into larger blisters. Dermatology Quiz Course - Advanced. Click here for the beginners course. Test your knowledge and improve your skills in dermatology. A free 10-week quiz course looking at …A significant proportion is red, pink, or erythematous. Typical early lesions present as asymmetrical macular lesions that may be uniformly pink or red and may have a faint light tan, brown, or grey pigmentation at the periphery. The borders may be well- or ill-defined [ 4]. Any subtype of melanoma can be amelanotic.Lichen sclerosus is an uncommon inflammatory dermatosis. In men, it typically involves uncircumcised genitalia ie, the glans (tip or head of the penis) and the prepuce (foreskin). Perianal lichen sclerosus and extragenital lichen sclerosus are much less frequently seen in men than in women. Male genital lichen sclerosus has been previously ...Dyshidrotic eczema (pompholyx) is a chronic, recurrent condition and appears as small, deep-seated, fluid-filled blisters (vesicles) on the sides of the fingers, hands, and feet. The vesicles are small (1–2mm), often symmetrical, with no associated erythema, and they do not occur elsewhere on the body. Vesicles may coalesce into larger blisters.A dermatome is an area of skin that is primarily supplied by a single nerve root: communicating sensation from this skin region to the brain. Somatosensation includes feedback from mechanoreceptors, thermoreceptors, proprioceptors, pain receptors, and chemoreceptors. Dermatomes are different from Blaschko lines.Molluscum contagiosum is caused by a poxvirus, the molluscum contagiosum virus. There are at least 4 viral subtypes. Sexual transmission in adults. Transmission of molluscum contagiosum appears to be more likely in wet conditions, such as when children bathe or swim together.A dermatofibroma can occur anywhere on the skin. Dermatofibroma size varies from 0.5–1.5 cm diameter; most lesions are 7–10 mm diameter. A dermatofibroma is tethered to the skin surface and mobile over subcutaneous tissue. The overlying skin dimples on pinching the lesion – the dimple or pinch sign. Colour may be pink to light brown in ...Imiquimod is an immune response modifier. It is manufactured as a 5% (50 mg/g) cream called Aldara™. Generic forms of imiquimod cream are also available. The Perrigo brand is funded by PHARMAC in New Zealand (2019). A 3.75% cream called Zyclara™ has also been approved by the FDA in the USA but is not yet available in New Zealand (March …Aphthous ulceration is classified into three types. Recurrent minor aphthous ulcer (80%). This is less than 5 mm in diameter and heals within 1–2 weeks. Major aphthous ulcer, which is large (often more than 10 mm) and takes weeks or months to heal and leaves a scar. Herpetiform ulcers, which are multiple pinpoint ulcers that heal within a month.Dercum disease is also known as adiposis dolorosa. It is a rare disease characterised by a combination of features: Multiple encapsulated fat overgrowths ( lipomas) on the trunk and limbs. Painful subcutaneous plaques. Ecchymoses (bruises) without noticed trauma. Dercum disease may be associated with obesity, emotional upset and fatigue.About DermNet. DermNet is the world’s leading free dermatology resource. DermNet is created for healthcare professionals to serve as a comprehensive database of skin conditions. Nearly everyone will experience a skin issue at some point in their lives and having a trustworthy, independent, easily accessible source of information is important ...The world's authority on skin information. DermNet NZ is the world’s free resource and authority on all things skin. We help thousands of people make informed, evidence …Scalp tumours occur worldwide. Most scalp tumours (93–99%) are benign as opposed to malignant. Approximately 40–50% of benign scalp tumours are cysts with an estimated 20% incidence in Western populations. Trichilemmal (or pilar) cysts are especially common and it is estimated 80% of these cysts occur on the scalp. Tinea infections. Tinea barbae (fungal infection of the beard) Tinea capitis (fungal infection of the scalp) Tinea corporis (fungal infection of the trunk and limbs) Tinea cruris (fungal infection of the groin) Tinea faciei (fungal infection of the face) Tinea incognito (steroid-treated fungal infection) Tinea manuum (fungal infection of the hand) The affected skin may be red and itchy, swollen and blistered, or dry and bumpy. Some typical examples of allergic contact dermatitis include: Eczema in the skin in contact with jewellery items, due to contact allergy to nickel. Reactions to fragrances in perfumes and household items. Eczema under adhesive plaster, due to contact allergy to …A dermatome is an area of skin that is primarily supplied by a single nerve root: communicating sensation from this skin region to the brain. Somatosensation includes feedback from mechanoreceptors, thermoreceptors, proprioceptors, pain receptors, and chemoreceptors. Dermatomes are different from Blaschko lines.About DermNet. DermNet is the world’s leading free dermatology resource. DermNet is created for healthcare professionals to serve as a comprehensive database of skin conditions. Nearly everyone will experience a skin issue at some point in their lives and having a trustworthy, independent, easily accessible source of information is important ...Jan 31, 2019 · 17.8% were aged 50-59. 23.9% were aged 60-69. 23.7% were aged 70-79. 16% were aged 80 or older. The mean age for melanoma diagnosis is 65.7 years among men and 62.4 years among women. Melanoma is the most common cancer diagnosed in young Australians aged 15–29 years, accounting for 15% of all cancers in this age group. What is rosacea? Rosacea is a chronic inflammatory skin condition predominantly affecting the central face and most often starts between the age of 30–60 years.. Rosacea is common and is characterised by persistent facial redness. It typically has a relapsing and remitting course, with symptoms controlled by lifestyle measures, general skin care, medications, …Balanitis is an inflammatory condition of the glans penis (head of the penis). Inflammation often involves the foreskin, or prepuce, which is more appropriately known as balanoposthitis. Many urologic clinic visits are due to balanitis, which may be caused by infection, trauma, irritation to the glans penis, and allergic dermatitis.Polymorphic light eruption (PMLE) is a seasonal, acquired, idiopathic photodermatosis occurring in spring and early summer. It is also known as polymorphous light eruption, sun allergy, sun poisoning, prurigo aestivalis, summer eruption/prurigo, or eczema solare. Juvenile spring eruption is a variant of PMLE. Psoriasis is a chronic inflammatory skin condition characterised by red and scaly plaques. It is classified into several types and can be treated with biological drugs. Learn about its causes, clinical features, diagnosis and treatment options from DermNet, a comprehensive online dermatology resource. A venous lake is usually easy to diagnose clinically by its appearance. The colour disappears on compression of the macule or papule due to the clearance of blood from the dilated venule. This is most easily seen using a glass slide or the lens of a contact dermatoscope. A venous lake has a structureless blue or purple appearance on …Psoriasis is a multifactorial systemic disease including inflammation and epidermal hyperproliferation. Nail psoriasis can involve the nail bed, nail matrix, hyponychium, and nail folds. Theories include: Activation of the antimicrobial peptide LL-37 by Candida and the cytokine overflow theory. Increased expression of interleukin (IL)-10 in the ...Scarlet fever usually starts with a sudden fever associated with sore throat, swollen neck glands, headache, nausea, vomiting, loss of appetite, swollen and red strawberry tongue, abdominal pain, body aches, and malaise. The characteristic rash appears 12–48 hours after the start of the fever. The rash usually starts below the ears, …Dermatologist – USA. One of the most easy, complete and comprehensive sources for dermatological conditions. Every topic is well written and covered completely. This site is my friend at the clinic. Thank you for your effort.DermNet is a worldwide clinical resource website about dermatology and skin conditions. Its co-founder and former editor-in-chief is dermatologist and Adjunct Associate Professor … Dyshidrotic eczema (pompholyx) is a chronic, recurrent condition and appears as small, deep-seated, fluid-filled blisters (vesicles) on the sides of the fingers, hands, and feet. The vesicles are small (1–2mm), often symmetrical, with no associated erythema, and they do not occur elsewhere on the body. Vesicles may coalesce into larger blisters. It is characterised by: Open and closed uninflamed comedones (blackheads and whiteheads) Inflamed papules and pustules. In severe acne, nodules and pseudocysts. Post-inflammatory erythematous or pigmented macules and scars. Adverse social and psychological effects. Severity is classified as mild, moderate, or severe. Melasma is a common acquired skin disorder that presents as a bilateral, blotchy, brownish facial pigmentation. This form of facial pigmentation was previously called chloasma, but as this derives from the Greek meaning …Discoid lupus erythematosus (DLE) is a chronic scarring skin condition. It is the most common form of cutaneous lupus. DLE is a sub-type of chronic cutaneous lupus erythematosus. It is characterised by persistent scaly plaques on the scalp, face, and ears which subsequently can progress to scarring, atrophy, dyspigmentation, and permanent …The DermDiag Tool is designed to help you understand your skin condition. This tool does not provide medical advice. To get started, select the part of the body where you are experiencing symptoms. We …Dercum disease is also known as adiposis dolorosa. It is a rare disease characterised by a combination of features: Multiple encapsulated fat overgrowths ( lipomas) on the trunk and limbs. Painful subcutaneous plaques. Ecchymoses (bruises) without noticed trauma. Dercum disease may be associated with obesity, emotional upset and fatigue.Dercum disease is also known as adiposis dolorosa. It is a rare disease characterised by a combination of features: Multiple encapsulated fat overgrowths ( lipomas) on the trunk and limbs. Painful subcutaneous plaques. Ecchymoses (bruises) without noticed trauma. Dercum disease may be associated with obesity, emotional upset and fatigue.The Fitzpatrick skin type (or phototype) depends on the amount of melanin pigment in the skin. This is determined by constitutional colour (white, brown, or black skin) and the effect of exposure to ultraviolet radiation (tanning). Pale or white skin burns easily and tans slowly and poorly: it needs more protection against sun exposure.Dec 1, 2023 · VisualDx is a diagnostic clinical support tool that includes over 2,800 adult and pediatric conditions as well as over 40,000 images. Clinicians can search by a diagnosis, build a patient- specific differential, or review over 20,000 medication reactions and adverse events. Dermatomal — lesions confined to one or more segments of skin innervated by a single spinal nerve ( dermatomes ). Extensor — involving extensor surfaces of limbs. Contrast with flexor surfaces. Flexural — related to flexion, or skin folds, such as the backs of knees, the armpits, the elbow creases and the groin. Pruritus is the medical term for itch. Itch is an unpleasant sensation on the skin that provokes the desire to rub or scratch the area to obtain relief. Itch can cause discomfort and frustration; in severe cases it can lead to disturbed sleep, anxiety and depression. Constant scratching to obtain relief can damage the skin ( excoriation ... Cutaneous squamous cell carcinoma (SCC) is a common type of keratinocyte cancer, or non- melanoma skin cancer. It is derived from cells within the epidermis that make keratin — the horny protein that makes up skin, hair and nails. Cutaneous SCC is an invasive disease, referring to cancer cells that have grown beyond the epidermis. Basal cell carcinoma (BCC) is a common, locally invasive, keratinocyte cancer (also known as nonmelanoma cancer). It is the most common form of skin cancer. BCC is also known as rodent ulcer and basalioma. Patients with BCC often develop multiple primary tumours over time. Lichen sclerosus is an uncommon inflammatory dermatosis. In men, it typically involves uncircumcised genitalia ie, the glans (tip or head of the penis) and the prepuce (foreskin). Perianal lichen sclerosus and extragenital lichen sclerosus are much less frequently seen in men than in women. Male genital lichen sclerosus has been previously ...Boils present as one or more tender red spots, lumps or pustules. Careful inspection reveals that the boil is centred on a hair follicle. A boil is a deep form of bacterial folliculitis; superficial folliculitis is sometimes present at the same time. Staphylococcus aureus can be cultured from the skin lesions.Introduction. Itch is defined by a desire to scratch. An acute or chronic itchy rash is most often due to dermatitis / eczema. Dermatitis can be primary, or secondary to scratching. Stages include: Acute dermatitis: red, oozy, swollen skin. Subacute dermatitis: red, dry skin. Chronic dermatitis: skin coloured or dark, dry, thickened skin with ... Venous eczema can form discrete patches or become confluent and circumferential. Features include: Itchy red, blistered and crusted plaques; or dry fissured and scaly plaques on one or both lower legs. Orange-brown macular pigmentation due to haemosiderin deposition. Atrophie blanche (white irregular scars surrounded by red spots) Dermatology Quiz Course - Advanced. Click here for the beginners course. Test your knowledge and improve your skills in dermatology. A free 10-week quiz course looking at …It may cause discomfort or bleeding when passing bowel motions, and aggravate any tendency to constipation, particularly in children. Lichen sclerosus causes adhesions and scarring. The clitoris may be buried. The labia minora resorb/shrink. The entrance to the vagina tightens (introital stenosis ). Pityriasis rosea is a self-limiting rash, which resolves in about 6–10 weeks. It is characterised by a large circular or oval "herald patch ", usually found on the chest, abdomen, or back. The herald patch is followed some time later, typically two weeks or so, by the development of smaller scaly oval red patches, resembling a Christmas tree ... Introduction. Itch is defined by a desire to scratch. An acute or chronic itchy rash is most often due to dermatitis / eczema. Dermatitis can be primary, or secondary to scratching. Stages include: Acute dermatitis: red, oozy, swollen skin. Subacute dermatitis: red, dry skin. Chronic dermatitis: skin coloured or dark, dry, thickened skin with ...What is rosacea? Rosacea is a chronic inflammatory skin condition predominantly affecting the central face and most often starts between the age of 30–60 years.. Rosacea is common and is characterised by persistent facial redness. It typically has a relapsing and remitting course, with symptoms controlled by lifestyle measures, general skin care, medications, …What is rosacea? Rosacea is a chronic inflammatory skin condition predominantly affecting the central face and most often starts between the age of 30–60 years.. Rosacea is common and is characterised by persistent facial redness. It typically has a relapsing and remitting course, with symptoms controlled by lifestyle measures, general skin care, medications, …Central Centrifugal Cicatricial Alopecia (CCCA) is a form of scarring alopecia on the scalp that results in permanent hair loss. It is the most common form of scarring hair loss seen in black women. However, it may be seen in men and among persons of all races and hair colour (though rarely). Middle-aged women are most commonly affected.Scaly patches anywhere or everywhere. Dry skin. Dermatitis ( Eczema) Atopic dermatitis (eczema) Tinea infections. Psoriasis. Paediatric psoriasis. Psoriasis in children. Tinea infections. Tinea barbae (fungal infection of the beard) Tinea capitis (fungal infection of the scalp) Tinea corporis (fungal infection of the trunk and limbs) Tinea cruris (fungal infection of the groin) Tinea faciei (fungal infection of the face) Tinea incognito (steroid-treated fungal infection) Tinea manuum (fungal infection of the hand) Dermatoporosis is a term used to describe chronic cutaneous insufficiency and fragility associated with both intrinsic and extrinsic ageing. The features of dermatoporosis include: Skin fragility and atrophy. Senile purpura. Stellate pseudoscars (star-shaped white patches) Non-healing atrophic ulcers.DermNet Cases. DermNet now features a library of authentic patient cases with images. These cover the various symptoms, diagnosis, treatments, and outcomes that can be expected in the real world. You'll find these cases listed below. All of our content is written by medical professionals and reviewed by dermatologists before being published.Bired panda, 98.5 atlanta, Garden of eden bar key west, Zeppelin pizza, Brooklyn bakery, Blackcatdc, Moab springs ranch, Brian reptiles, National oil varco, El sazon, Barefoot landing north myrtle beach, Scag, Woodlands sports medicine, Movie tavern theater williamsburg

Tinea corporis is spread by the shedding of fungal spores from infected skin. Transmission is facilitated by a warm, moist environment and the sharing of fomites including bedding, towels, and clothing. Dermatophyte infection elsewhere on the skin, such as tinea pedis, can also be transferred. The incubation period is 1–3 weeks. . Nourison

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Pruritus is the medical term for itch. Itch is an unpleasant sensation on the skin that provokes the desire to rub or scratch the area to obtain relief. Itch can cause discomfort and frustration; in severe cases it can lead to disturbed sleep, anxiety and depression. Constant scratching to obtain relief can damage the skin ( excoriation ... Anal intraepithelial neoplasia. Anal intraepithelial neoplasia (AIN) is a superficial squamous-cell carcinoma usually associated with human papillomavirus (HPV) 16 and 18, often seen in HIV /AIDS. The clinical features are non-specific, presenting as a bleeding, well-defined red, scaly erythematous rash-like plaque on the perianal skin. Mycosis fungoides (MF) represents 50% of all primary cutaneous lymphomas and 60-70% of all cutaneous T-cell lymphomas (CTCL). However, it is an uncommon condition with an estimated incidence worldwide of 6.4 per million. Onset is usually in late adulthood ( median age 55–60 years) with a male predominance (2:1) in white patients.What is a digital myxoid pseudocyst? A digital myxoid pseudocyst is a shiny papule found at the end of a finger or toe, close to the nail. It is called a pseudocyst because it is not surrounded by a capsule, unlike a true cyst. It is also called a myxoid cyst, a mucous cyst, a digital ganglion cyst, and a digital synovial cyst.Pityriasis versicolor affects the trunk, neck, and/or arms, and is uncommon on other parts of the body. The patches may be coppery brown, paler than surrounding skin, or pink. Pale patches may be more common in darker skin; this appearance is known as pityriasis versicolor alba. Sometimes the patches start scaly and brown, and then resolve ... Pityriasis rosea is a self-limiting rash, which resolves in about 6–10 weeks. It is characterised by a large circular or oval "herald patch ", usually found on the chest, abdomen, or back. The herald patch is followed some time later, typically two weeks or so, by the development of smaller scaly oval red patches, resembling a Christmas tree ... THE PRIMARY CARE DERMATOLOGY SOCIETY (PCDS) is the leading UK society for all members of the primary healthcare team with an enthusiasm for dermatology, dermoscopy and skin surgery. Read more about the society, its subgroups and the committee... TAKE A TOUR OF THE PCDS WEBSITE. Click here to see how to get the best out of the website.Acne products should be applied to all areas affected by acne, rather than just put on individual spots. A thin smear should only be applied to dry clean skin at nighttime. Acne products may work better if applied in the morning as well. They often cause dryness particularly in the first 2–4 weeks of use.Uncommon skin disorders in children. Acropustulosis of infancy. Acute haemorrhagic oedema of infancy. Bullous pemphigoid in childhood. Chronic bullous dermatosis of childhood. Granuloma gluteale infantum. Ichthyosis. Infantile … It is characterised by: Open and closed uninflamed comedones (blackheads and whiteheads) Inflamed papules and pustules. In severe acne, nodules and pseudocysts. Post-inflammatory erythematous or pigmented macules and scars. Adverse social and psychological effects. Severity is classified as mild, moderate, or severe. SKIN CARE. Originating in Italy, LA’DERM has not only inherited the essence of Europe’s skincare secrets, but also combined Europe’s unique sense of romantic and fashion style. It is designed specifically for young men and ladies who are enthusiastic, modern, independent, curious, and dare to try out new things. Its slogan “Body.Periorificial dermatitis has been reported to resolve in 72% of children in an average time of 3.8 months [3]. Corticosteroid use may prolong the disease course [4]. Lesions typically resolve without scarring; however, pigmentary changes may occur [3]. Recurrence in children is common in those who are dependent on a corticosteroid [3].Anal intraepithelial neoplasia. Anal intraepithelial neoplasia (AIN) is a superficial squamous-cell carcinoma usually associated with human papillomavirus (HPV) 16 and 18, often seen in HIV /AIDS. The clinical features are non-specific, presenting as a bleeding, well-defined red, scaly erythematous rash-like plaque on the perianal skin.Pyoderma gangrenosum is a rare disease that affects males and females of any age but is more common in those aged over 50 years. It frequently is associated with an internal disease or condition. Its known associations include: Inflammatory bowel disease (ulcerative colitis and Crohn disease) Rheumatoid arthritis. Boils present as one or more tender red spots, lumps or pustules. Careful inspection reveals that the boil is centred on a hair follicle. A boil is a deep form of bacterial folliculitis; superficial folliculitis is sometimes present at the same time. Staphylococcus aureus can be cultured from the skin lesions. DermNet is a worldwide clinical resource website about dermatology and skin conditions. Its co-founder and former editor-in-chief is dermatologist and Adjunct Associate Professor … Perioral/ periorificial dermatitis. Usually adult females using face cream, often topical corticosteroid. Often, asymmetrical first in perioral sites, later in perinasal and periocular sites. Spares a centimetre of skin around vermilion of lips. Grouped erythematous papules and pustules on erythematous patches, flaky surface. Dermatologist – USA. One of the most easy, complete and comprehensive sources for dermatological conditions. Every topic is well written and covered completely. This site is my friend at the clinic. Thank you for your effort. Dermatitis herpetiformis (DH) is an inflammatory immunobullous disease of the skin and a cutaneous manifestation of coeliac (celiac) disease, a gluten-sensitive enteropathy. The name herpetiformis is derived from the tendency for blisters to appear in clusters, resembling herpes simplex. However, DH is not due to viral infection. Fungal infection of the nail, also known as onychomycosis, compromises over 50% of all nail disease with an estimated prevalence of 5.5%. They can affect the toenails, fingernails, or both. Fungal nail infections are also known as tinea unguium in the case of dermatophyte infections. Browse over 20,000 clinical dermatology images from DermNet, a leading online resource for skin health information. You can use the watermarked images for free, or buy the non-watermarked ones for your own purposes. Cutaneous vasculitis is a group of disorders in which there are inflamed blood vessels in the skin. These may include capillaries, venules, arterioles and lymphatics. Cutaneous vasculitis has several different causes. There are a wide variety of clinical presentations. It is associated with systemic vasculitis in a minority of patients.Pruritus is the medical term for itch. Itch is an unpleasant sensation on the skin that provokes the desire to rub or scratch the area to obtain relief. Itch can cause discomfort and frustration; in severe cases it can lead to disturbed sleep, anxiety and depression. Constant scratching to obtain relief can damage the skin ( excoriation ... Experience. Mayo Clinic's dermatologists are recognized nationally and internationally for their expertise in diagnosing and treating conditions of the skin, mucous membranes, hair and nails, and for their broad range of clinical, educational and research achievements. Our dermatology and dermatopathology specialists have expertise in genetics ... Nummular dermatitis (or eczema) is also known as discoid eczema (or dermatitis). It has two forms: Exudative (‘wet’) nummular dermatitis. Dry nummular dermatitis. Exudative nummular dermatitis. The exudative variant starts acutely and may persist for weeks, months and rarely years. Although it may arise at any age, most subjects are over 50 ...Athlete's foot is a term often used to describe a fungal infection (or dermatophytosis) of the foot ( tinea pedis ). It most often results in peeling skin and fissuring between the toes (the toe clefts ). The cleft between the fourth and fifth toes is the most frequently affected. Fungal infection is not the only reason for peeling and ...Boils present as one or more tender red spots, lumps or pustules. Careful inspection reveals that the boil is centred on a hair follicle. A boil is a deep form of bacterial folliculitis; superficial folliculitis is sometimes present at the same time. Staphylococcus aureus can be cultured from the skin lesions.DermNet features a database of thousands of pages covering almost every known skin condition. You'll find these below along with pages on treatments, histopathology and …Scalp psoriasis is a skin condition characterised by red, thickened, well- demarcated patches or plaques with overlying silvery-white scales, affecting part or all of the scalp. It can be contained within the hairline, though frequently affects the back of the head, or extends onto the forehead ( facial psoriasis ), ears, or neck.We are currently Redesigning Dermnet Skin disease AtlasChickenpox is a highly contagious viral infection that causes an acute fever and blistered rash, mainly in children. Chickenpox is also known as varicella. The name may be derived from the French term for chickpea, chiche pois. Another theory is that the word 'chicken' was derived from a slang term for 'child'.A melanocytic naevus (American spelling ‘ nevus ’), or mole, is a common benign skin lesion due to a local proliferation of pigment cells ( melanocytes ). It is sometimes called a naevocytic naevus or just 'naevus' (but note that there are other types of naevi ). A brown or black melanocytic naevus contains the pigment melanin, so may also ...Darier disease is an autosomal dominant genetic disorder classified as a hereditary acantholytic dermatosis. Darier disease typically presents with scaly crusted papules in a seborrhoeic distribution and in skin folds. Also known as Darier–White disease, Darier disease was previously called ‘ keratosis follicularis’, but this is incorrect ...Folliculitis means an inflamed hair follicle due to any cause. The result is a tender red spot, often with a surface pustule. Folliculitis may be superficial or deep. It can affect anywhere there are hairs, including chest, back, buttocks, arms, and legs. Acne and its variants are also types of folliculitis.Narrowband ultraviolet B (UVB) (311–312 nm wavelengths) is also known as TL01 light therapy (after the type of fluorescent tubes used). Narrowband UVB is particularly effective in thin chronic plaque psoriasis and guttate psoriasis, especially in the winter months. It is generally felt to be safe and well-tolerated.The herald patch is a single patch that appears before the generalised rash of pityriasis rosea. It is a slightly raised, oval, salmon-pink or red plaque 2–5 cm in diameter, with a peripheral scale trailing just inside the edge of the lesion, like a collaret. Pityriasis rosea and a herald patch on the torso. A hypopigmented herald patch.Keratoacanthoma (KA) is a common, rapidly growing, locally destructive skin tumour . KAs may regress spontaneously with scarring, but clinically they may be indistinguishable from well- differentiated squamous cell carcinoma (SCC) and the clinical course may be unpredictable. Thus, many clinicians and pathologists prefer the term SCC, KA-type ... Cutaneous squamous cell carcinoma (SCC) is a common type of keratinocyte cancer, or non- melanoma skin cancer. It is derived from cells within the epidermis that make keratin — the horny protein that makes up skin, hair and nails. Cutaneous SCC is an invasive disease, referring to cancer cells that have grown beyond the epidermis. Dermoid cysts occur mostly on the face (outer eyebrow, eyelid, upper nose), neck, or scalp but they may occur anywhere in the body. The cyst is usually a solitary, firm, dough-like lump and ranges in size from 0.5–6 cm in diameter. It can be associated with a nearby pit and/or sinus tract to underlying tissues.Lip licker’s dermatitis is a reaction of the lips ( eczematous cheilitis) and surrounding skin ( irritant contact dermatitis) due to contact with an irritating substance — in this case, saliva from the patient’s own tongue [1,2]. Other names for lip licker's dermatitis are lip-lick cheilitis, irritant contact cheilitis due to lip-licking ...Roseola is a disease caused by the human herpes virus type 6B (HHV-6B) and possibly type 7 (HHV-7). These herpes viruses have only been identified in recent years, and we are still learning about the full range of diseases caused by them. Roseola is characterised by high fever lasting for 3–5 days, runny nose, irritability and tiredness. DermNet is a worldwide clinical resource website about dermatology and skin conditions. Its co-founder and former editor-in-chief is dermatologist and Adjunct Associate Professor Amanda Oakley . [2] The website was launched in 1996 under the umbrella of the New Zealand Dermatological Society , and as of 2017, around 2 million people access the ... Scalp tumours occur worldwide. Most scalp tumours (93–99%) are benign as opposed to malignant. Approximately 40–50% of benign scalp tumours are cysts with an estimated 20% incidence in Western populations. Trichilemmal (or pilar) cysts are especially common and it is estimated 80% of these cysts occur on the scalp. By definition, dermographism appearing at least 30 minutes after stroking. It may be described after a typical weal of immediate dermographism comes and goes, 3–6 hours later a wide weal reappears without a flare at the same site and persists for up to 48 hours. Associated with burning and tenderness of the weal. A dome-shaped or egg-shaped lump about 2–10 cm in diameter (some may grow even larger) Lipomas are most common on the shoulders, neck, trunk and arms, but they can occur anywhere on the body where fat tissue is present. Most lipomas are symptomless, but some are painful when applying pressure.Cherry angioma is an asymptomatic firm red, blue, or purple papule, 0.1–1 cm in diameter. When thrombosed, it can appear black in colour until examined with a dermatoscope when the red or purple colour is more easily seen. Cherry angiomas are usually multiple. They are usually scattered over any part of the body surface, but are rarely found ...Anywhere on the skin, sometimes on mucous membranes. Angiokeratoma of Fordyce. Common, male predominance, increases with age. Found on scrotum and vulva. Angiokeratoma of Mibelli. Rare, appears in childhood. Multiple warty purple papules; acral, elbows, knees, breast. Angiokeratoma circumscriptum. Rare vascular birthmark, female … Erythema nodosum is a hypersensitivity reaction of unknown cause in up to 55% of patients [6]. In other cases, it is associated with an identified infection, drug, inflammatory condition, or malignancy [7]. Other viral and bacterial diseases associated with erythema nodosum include herpes simplex, viral hepatitis, human immunodeficiency virus ... Cutaneous squamous cell carcinoma (SCC) is a common type of keratinocyte cancer, or non- melanoma skin cancer. It is derived from cells within the epidermis that make keratin — the horny protein that makes up skin, hair and nails. Cutaneous SCC is an invasive disease, referring to cancer cells that have grown beyond the epidermis.. 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