A 41 year old man from Ohio presents with fever, cough, fatigue, and weight loss. He recently helped clean an old chicken coop. Chest imaging shows bilateral hilar lymphadenopathy and patchy pulmonary infiltrates. Lung biopsy demonstrates small oval yeasts within macrophages. Which of the following organisms is the most likely cause of this infection?
- A)Cryptococcus neoformans
- B)Blastomyces dermatitidis
- C)Pneumocystis jirovecii
- D)Coccidioides immitis
- E)Histoplasma capsulatumGABARITO
Explicação
Histoplasma capsulatum is correct. Histoplasma is a dimorphic fungus endemic to the Ohio and Mississippi River valleys and is associated with bird or bat droppings. In tissue it appears as small intracellular yeasts within macrophages and can mimic tuberculosi... Ver explicação completa e trilha adaptativa →