Diffuse increased reticular opacities in both lungs with increased confluence in the left base, which are nonspecific and may represent an acute or chronic process. Possible etiologies include atypical infection, drug reaction, or edema if acute, and pulmonary fibrosis or other interstitial processes if chronic. Cross-sectional imaging may be helpful for further evaluation.
Fibrosis (Uncertain) Edema (Uncertain)