A patient who is a recent immigrant from a tropical, remote, rural area with no medical care is now working with a group of migrant crop harvesters. He has a large, raised, colored, cauliflower-like ankle lesion. Darkly pigmented, yeastlike sclerotic bodies are seen in the tissue biopsy. Which of the following is the most likely diagnosis?

Question

A patient who is a recent immigrant from a tropical, remote, rural area with no medical care is now working with a group of migrant crop harvesters. He has a large, raised, colored, cauliflower-like ankle lesion. Darkly pigmented, yeastlike sclerotic bodies are seen in the tissue biopsy. Which of the following is the most likely diagnosis?

Quizplus · Accepted Answer

The finding of dematiaceous (dark), yeastlike sclerotic bodies that have sharp planar division lines and the clinical presentation are both characteristic of chromoblastomycosis. Tinea nigra would show dematiaceous hyphae in flat palmar or plantar lesions.

A Patient Who Is a Recent Immigrant from a Tropical