Chest CT findings in hematopoietic cell transplant recipients with parainfluenza pneumonia

(A) High-resolution CT scan of the lungs of patient 1 that show peribronchial nodules <5 mm, 5 to 10 mm, and >10 mm in diameter. (B) High-resolution CT scan of the lungs of patient 1 that show nodules with associated consolidation. (C) High-resolution CT scan of the lungs of patient 3 that shows very small (<5 mm) peribronchial nodules in the left upper lobe. (D) High-resolution CT scan of the lungs of patient 5 that show multiple small (≤5 mm) peribronchial nodules and the appearance of ground-glass consolidation.