A 45-year-old man from the southwestern United States presents with fever, weight loss, and cough productive of blood. Chest X-ray reveals a solitary cavitary lesion in the right upper lobe. Sputum culture grows a dimorphic fungus that appears as small yeast in macrophages. Which of the following is the most likely causative organism?
- A)Blastomyces dermatitidis
- B)Paracoccidioides brasiliensis
- C)Histoplasma capsulatum
- D)Coccidioides immitisGABARITO
- E)Cryptococcus neoformans
Explicação
Coccidioides immitis is endemic to the southwestern US and causes cavitary pulmonary disease with hemoptysis. The dimorphic fungus forms spherules with endospores, not yeast. Geographic location and cavitary disease with hemoptysis are key diagnostic features. Ver explicação completa e trilha adaptativa →