A patient with AIDS has dyspnea and bilateral ground-glass infiltrates. Silver stain shows cysts. Which organism is responsible?
Answer and explanation
Correct answer: B. Pneumocystis jirovecii
- Step 1: Silver-staining cysts identify Pneumocystis. Answer: Pneumocystis jirovecii. Why not the others: Mycobacterium avium complex, Cytomegalovirus and Toxoplasma gondii don't fit.
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