The test likely to help in diagnosis of a patient who presents with an itchy annular plaque on the face is:
Correct Answer: Potassium hydroxide mount
Description: B i.e. KOH mount Trichophyton rubrum is most common cause of tinea corporis (body), t. cruris, t. pedis, t. manuum & t.unguiumQ. Diagnosis is made by KOH wet mount.
Category:
Skin
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