A 34-year-old woman with untreated HIV (CD4 200 cells/μL) presents with progressive dyspnea, fever, and a nonproductive cough for 3 weeks. Chest imaging shows bilateral interstitial infiltrates. Bronchoalveolar lavage (BAL) fluid is negative for acid-fast bacilli and fungal culture. Which of the following organisms is most likely responsible for this presentation?
- A)Histoplasma capsulatum
- B)Aspergillus fumigatus
- C)Pneumocystis jiroveciiGABARITO
- D)Cryptococcus neoformans
- E)Candida albicans
Explicação
Pneumocystis jirovecii (formerly P. carinii) causes PCP, the classic opportunistic infection in HIV patients with CD4 <200 cells/μL. Bilateral interstitial infiltrates and nonproductive cough are hallmark findings. BAL with special stains (silver stain, toluid... Ver explicação completa e trilha adaptativa →