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Gottron's sign is a pathognomonic cutaneous manifestation associated with dermatomyositis (DM), which is an inflammatory disorder affecting the skin and muscles. [1] The primary lesion of dermatomyositis appears as a violaceous, macular erythema with a symmetric distribution, which may progress and become poikilodermatous (atrophic with telangiectasia and pigmentary changes) and indurated (as ...
This type of rash can be as a result of large doses of niacin or no-flush niacin (2000 – 2500 mg), [citation needed] used for the management of low HDL cholesterol. [4] This type of rash can also be a symptom of Sea bather's eruption. This stinging, pruritic, maculopapular rash affects swimmers in some Atlantic locales (e.g., Florida ...
Erythema annulare centrifugum (EAC), is a descriptive term for a class of skin lesion [2] presenting redness in a ring form (anulare) that spreads from a center (centrifugum). It was first described by Darier in 1916.
[1] [2] The rash consists of macular lesions that are red and usually 2–10 mm in diameter but may be confluent in places. [3] A morbilliform rash is a rose-red flat or slightly elevated (maculopapular) eruption, showing circular or elliptical lesions varying in diameter from 1 to 3 mm, with healthy-looking skin intervening. [citation needed]
Other symptoms to note: Drug rashes can be a side effect of or a reaction to a new medication; almost any medication can cause a drug rash, but antibiotics and NSAIDs are the most common culprits ...
The diagnosis may confirm any number of conditions. The presence of a rash may aid diagnosis; associated signs and symptoms are diagnostic of certain diseases. For example, the rash in measles is an erythematous, morbilliform, maculopapular rash that begins a few days after the fever starts. It classically starts at the head, and spreads downwards.
Confluent erythematous and edematous patches on cheeks ("slapped cheek") for 1-4 days followed by a "lacy," reticular, erythematous rash on the body. Roseola infantum (exanthem subitum) "sixth disease" HHV-6 and HHV-7: Rapid onset of erythematous, blanching macules and papules surrounded by white halos on the trunk after 3-5 days of high fever.
Differential diagnosis Osler's nodes [ 1 ] Janeway lesions are rare, non- tender , small erythematous or haemorrhagic macular , papular or nodular lesions on the palms or soles only a few millimeters in diameter that are associated with infective endocarditis and often indistinguishable from Osler's nodes .