CTICasesPneumocystis Jirovecii Pneumonia
Imaging findings
Serial CT chest scans in a 37-year-old male hiker show progressive, diffuse ground-glass opacities that coalesced into consolidation, followed by the development of multiple thin-walled lung cysts and bilateral pneumothoraces. High HIV viral load and lymphopenia were confirmed, and pathology demonstrated Pneumocystis jirovecii.
Key takeaways
Pneumocystis jirovecii pneumonia (PJP) is an opportunistic fungal infection classically seen in AIDS. CT findings include diffuse ground-glass opacities and the development of pulmonary cysts (pneumatoceles) that can rupture, causing spontaneous pneumothorax.
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