6 year old Labrador Retriever

Findings

A chest tube is present in the left hemithorax. There is retraction of the lung lobes bilaterally and the cardiac silhouette appears “lifted” from the sternum. There are multiple thin radiopaque lines in the ventral thorax. There is a thin walled triangular structure in the cranial thorax best seen on the left lateral projections. On the dorsoventral projection, there is a focal alveolar opacity in the left caudal lung lobe.