A 68-year-old man with COPD and prior pulmonary tuberculosis presents with hemoptysis and dyspnea. Vitals: BP 138/82, HR 92, RR 22, Temp 37.2°C, SpO2 88% on room air. High-resolution CT chest shows a 3-cm cavitary lesion with an intracavitary mobile mass. Sputum culture grows septate hyphae with acute-angle branching. Chest X-ray shows no pneumothorax. He denies fever or weight loss. Which organism is most likely responsible?

  1. A)Mucormycosis
  2. B)Coccidioidomycosis
  3. C)Histoplasmosis
  4. D)Acute invasive aspergillosis
  5. E)AspergillomaGABARITO

Explicação

Aspergilloma (fungal ball) occurs in pre-existing cavitary lung lesions from TB or COPD. Aspergillus fumigatus colonizes the cavity, forming a mobile mass ('air crescent' sign). Septate hyphae with acute angle branching are pathognomonic. Hemoptysis results fr... Ver explicação completa e trilha adaptativa →

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