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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.
Small, irregular reddish-brown telangiectatic macules covering a tan to brown backdrop are the usual appearance of TMEP lesions. [3] The diameter of a single lesion is often between 2 and 4 mm. [4] During a diascopy, the telangiectatic lesions typically blanch.
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.
Maculopapular rash on the abdomen after 3 days of measles infection A maculopapular rash is a type of rash characterized by a flat, red area on the skin that is covered with small confluent bumps. It may only appear red in lighter-skinned people.
The term morbilliform refers to a rash that looks like measles. [ 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 ( macular ) or slightly elevated ( maculopapular ) eruption, showing circular or elliptical lesions varying ...
In dermatology, a target lesion or bull's-eye lesion, named for its resemblance to the bull's-eye of a shooting target, is a rash with central clearing. It occurs in several diseases, as follows: Target lesions are the typical lesions of erythema multiforme, in which a vesicle is surrounded by an often hemorrhagic maculopapule. Erythema ...
Post-kala-azar dermal leishmaniasis (PKDL) is a complication of visceral leishmaniasis (VL); it is characterised by a macular, maculopapular, and nodular rash in a patient who has recovered from VL and who is otherwise well. The rash usually starts around the mouth from where it spreads to other parts of the body depending on severity.
Some diagnoses may also require a skin biopsy which yields histologic information [11] [12] that can be correlated with the clinical presentation and any laboratory data. [ 13 ] [ 14 ] The introduction of cutaneous ultrasound has allowed the detection of cutaneous tumors, inflammatory processes, and skin diseases.