In radiology, ground glass opacity GGO is a nonspecific finding on computed tomography CT scans that indicates a partial filling of air spaces in the lungs by exudate or transudate, as well as interstitial thickening or partial collapse of lung alveoli
The differential diagnosis of the many causes of GGO includes pulmonary edema, infections including cytomegalovirus and Pneumocystis carinii pneumonia, various noninfectious interstitial lung diseases such as hypersensitivity pneumonitis, Hamman-Rich syndrome, diffuse alveolar hemorrhage, and cryptogenic organizing pneumonia1
- ^ Jannette Collins, MD; Eric J Stern, MD 1998 "Ground glass opacity on CT scanning of the chest: What does it mean" PDF Applied Radiology Retrieved 2012-02-01
- Ground-Glass Opacity of the Lung Parenchyma: A Guide to Analysis with High-Resolution CT
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