Scattered ground glass opacification is seen bilaterally, predominantly in the upper zones and worst on the left with a "crazy paving" distribution. Small cysts are seen scattered throughout with more significant parenchymal distortions seen at the apices. An area with sub-pleural septal thickening is seen in a dependent position in the left lower lobe. No nodules are identified.
No mediastinal lymph adenopathy. No pleural fluid collections. The heart is not enlarged. Internal fixation of the right clavicle noted. No acute bony lesions.
Conclusion: The appearance of the lungs is non-specific and may represent oedema, atypical infection, pulmonary haemorrhage and drug toxicity. The predominantly upper zone distribution, the appearance of multiple pneumatoceles and the absence of pleural effusions raises the possibility of PCP specifically.