Adam Friedman

Are You Confident of the Diagnosis? Characteristic findings on physical examination Erythrasma is a superficial cutaneous infection characterized by red-brown, wrinkling, possibly scaling, possibly pruritic, well demarcated plaques in flexural areas, including the interdigital (most common form), axillary, inguinal, intergluteal, and submammary folds. Lesions often begin as pink or red (Figure 1) and over time…

Are You Confident of the Diagnosis? What should you be alert for in the history? A history of prolonged or repeated skin exposure to mild-to-moderate heat or infrared radiation that is below the threshold of thermal burn (less than 45°C) should raise suspicion. The duration of exposure varies from weeks to years. Examples include: local…