The rash consists of macular lesions that are red and usually 2–10 mm in diameter but may be confluent in places. 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.
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.
What is morbilliform drug reaction? Morbilliform drug eruption is the most common form of drug eruption. Many drugs can trigger this allergic reaction, but antibiotics are the most common group. The eruption may resemble exanthems caused by viral and bacterial infections. A morbilliform skin rash in an adult is usually due to a drug.
Feb 15, 2020 · Morbilliform rash, or "measles-like" maculopapular skin eruption, is commonly caused by certain drug reactions or viral diseases. Maculopapular rashes are skin eruptions that exhibit both the characteristics of a macule and papule. Macules are small, circumscribed and discolored spots on the skin ...
The rash consists of macular lesions that are red and usually 2–10 mm in diameter but may be confluent in places.  A morbilliform rash is a rose-red flat or slightly elevated (maculopapular) eruption, showing circular or elliptical lesions varying in diamter from 1 to 3 mm, with healthy-looking skin intervening.
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For example, the word "rash" was used as a diagnosis in 89 consults; of those, the most prevalent final diagnosis made by the dermatology service was a drug reaction (18%), including Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS), Stevens Johnson Syndrome (SJS), and morbilliform drug eruption.
morbilliform rash: An exanthema commonly due to echovirus 9, consisting of fine, discrete maculopapules on the head and neck, rarely elsewhere; the rash and characteristic low-grade fever usually resolve in a week. DiffDx Rubella, meningococcal petechiae-Waterhouse-Friderichsen syndrome, Kawasaki’s disease.
Morbilliform (measles-like) eruptions are the most common cutaneous manifestations of drug-induced eruptions in children. In this eruption, fine erythematous macules and papules are distributed over the trunk. The rash often spreads centripetally from the trunk to the extremities. Lesions may coalesce into large plaques and are usually pruritic.
Picture of Morbilliform Drug Eruption Drug hypersensitivity reaction. Morbilliform rash on the trunk occuring 1 week after the administration of a systemic cephalosporin.