A 48-year-old immunocompromised man on ICU develops fever and new pulmonary infiltrates. CT chest shows bilateral ground-glass opacities with a 'crazy...

Question

A 48-year-old immunocompromised man on ICU develops fever and new pulmonary infiltrates. CT chest shows bilateral ground-glass opacities with a 'crazy paving' pattern. BAL shows PAS-positive granular material. What is the most likely diagnosis?

Accepted Answer

Pulmonary alveolar proteinosis (PAP)

Answer

Pneumocystis jirovecii pneumonia

Answer

Organising pneumonia

Answer

Hypersensitivity pneumonitis

Answer

Miliary tuberculosis

uk-fficm MCQ (SBA): Pulmonary Alveolar Proteinosis

A 48-year-old immunocompromised man on ICU develops fever and new pulmonary infiltrates. CT chest shows bilateral ground-glass opacities with a 'crazy paving' pattern. BAL shows PAS-positive granular material. What is the most likely diagnosis?