- Diagnostics
- Labs: ↑ LDH is a classic, though nonspecific, finding.
- CXR/CT: Bilateral, diffuse “ground-glass” opacities.
- Definitive Dx: Organisms seen on bronchoalveolar lavage (BAL) sample.
- Stains: Methenamine silver stain shows disc-shaped or “crushed ping-pong ball” cysts.
