Figure 1 Serial chest CT findings. Lung window imaging during the initial admission (A) revealed patchy opacities in both lower lobes, with the distal airways remaining clear, while the mediastinal view (B) showed no signs of lymph node enlargement, masses, or fluid accumulation. Upon readmission, the lung window (C) displayed the development of cavitary necrotizing pneumonia in both lower lobes, and the mediastinal window (D) indicated the presence of a right-sided pleural effusion measuring approximately 17 millimeters, with no associated vascular irregularities. At follow-up, the lung window (E) demonstrated improvement in the right lower lobe opacities, now accompanied by small cystic changes, and the mediastinal window (F) confirmed that the effusion had resolved, with the heart and diaphragmatic structures appearing normal. CT – computed tomography.