Mycology/Parasitology USMLE Step 1 Practice Question
A 35-year-old woman presents with a painful ulcer on her foot following a rose thorn prick while gardening. Over several weeks, nodular lesions have spread in a linear pattern along the lymphatic vessel, each with central drainage. Culture on special media grows a fungus. Which of the following is the most likely diagnosis?
Answer choices
- ABlastomycosis
- BHistoplasmosis
- CParacoccidioidomycosis
- DAspergillosis
- ESporotrichosisCorrect answer
- FCoccidioidomycosis
See the full explanation
Get the correct-answer rationale, why each distractor is wrong, the underlying mechanism, and high-yield associations — plus adaptive practice that targets your weak areas — with a free MedBoardPRO account.