A 34-year-old man with untreated HIV presents with 3 weeks of progressive dyspnea, nonproductive cough, and chest tightness. He reports fever to 38.5°C. Vital signs show HR 102/min, RR 28/min, BP 118/76 mmHg, and SpO2 88% on room air. CD4 count is 45 cells/μL. Chest X-ray demonstrates bilateral interstitial infiltrates with ground-glass opacification. Sputum culture remains negative. He denies hemoptysis. Which of the following is the most likely diagnosis?
- A)Pneumocystis jirovecii pneumoniaGABARITO
- B)Cytomegalovirus pneumonitis
- C)Aspergillus fumigatus infection
- D)Streptococcus pneumoniae pneumonia
- E)Mycobacterium tuberculosis infection
Explicação
Pneumocystis jirovecii pneumonia (PCP) is the most common opportunistic infection in AIDS patients with CD4 counts <50 cells/μL. The classic presentation is subacute onset of dyspnea, nonproductive cough, and fever with characteristic bilateral interstitial 'g... Ver explicação completa e trilha adaptativa →