What Is Your Diagnosis? Primary Cutaneous Aspergillosis

A 17-month-old boy presented with a pink, erythematous, sharply demarcated nodular plaque on the dorsal aspect of the right hand of 3 days’ duration that developed after being hospitalized for approximately 1 week for failure to thrive. Punch biopsy specimens were obtained from the dorsal aspect of the right hand and histologic analysis was performed with Grocott-Gomori methenamine-silver stain.