A Rash Under Black Light

A patient presents with a Rash. See how ultraviolet A light from a Wood’s lamp, revealing a coral-red fluorescence, leads to a definitive diagnosis.

Erythrasma


Ultraviolet light was shone on this patient’s rash. What is the diagnosis?

What is the most likely diagnosis?

Erythrasma
Intertrigo
Pityriasis rosea
Psoriasis
Tinea versicolor

Corynebacterium minutissimum, Dermatology, Erythrasma, Intertrigo, Wood’s Lamp

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