This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2018, Subject name: Microbiology
A HIV positive patient presents with cough for 10 days. Sputum culture by SDA reveals broad budding yeast, diagnosis: 
Select and explain. 
A. Histoplasma capsulatum, B. Blastomycosis, C. Coccidiodomycosis, D. Paracoccidiomycosis
B: Blastomycosis
Answer: B: Blastomycosis 
Explanation: In AIDS patients fungal infections by dimorphic fungi are more common. Of the following options all four other dimorphic fungi but the yeast stage with broad-based cells is seen only in blastomycosis histoplasma shows narrow base yeast cells. In coccidioidomycosis endospore, spherules are formed and in paracoccidioidomycosis, Mickey Mouse type of cells are seen.