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Click 22-year-old male with PJP and biapical cavitating lung lesions. Findings: Non-contrast axial CT stack images from the lung apicies to the upper abdomen. Images demonstrate diffuse cystic changes at the lung apices with surrounding ground-glass opacities and relative sparing of the lower lobes. Central airways are patent. The mediastinum, osseous structures, and visualized upper abdomen are normal. Technique: Axial CT images from a GE Light Speed VCT 64 slice CT scanner with lung windows (center: -600 HU, range: 1600 HU), 120 KVp, 500ms, tube current modulation with mA ranging from 90-180, slice thickness 5mm, non-contrast.

Click 22-year-old male with PJP and biapical cavitating lung lesions. Findings: Non-contrast CT coronal reconstruction stack (CT) from the lung apices to the upper abdomen. Images demonstrate diffuse cystic changes at the lung apices with surrounding ground-glass opacities and relative sparing of the lower lobes. Central airways are patent. The mediastinum, osseous structures, and upper abdomen are normal. Technique: Coronal reconstructions of an axial acquired CT images from a GE Light Speed VCT 64 slice CT scanner with lung windows (center: -600 HU, range: 1600 HU), 120 KVp, 500ms, tube current modulation with mA ranging from 90-180, slice thickness 5mm, non-contrast.