Day: July 4, 2023

Premature newborn now 2 months old with respiratory distress

CXR and CT of pneumatocele
CXR (above) and axial CT without contrast of the chest (below) shows diffuse interstitial thickening and a large, round, unilocular thin-walled cyst in the posterobasal aspect of the right lower lobe. The bronchus of the posterobasal segment of the right lower lobe was seen to extend into it.

The diagnosis was pneumatocele due to positive pressure ventilation in a patient with chronic lung disease.