11 year old Golden Retriever

Findings

There is a large soft tissue mass dorsal to the carina which is depressing the mainstem bronchi ventrally. The mass is widening the mainstem bronchi on the dorsoventral projection, as well as widening the mediastinum cranial to the carina. There is a small amount of gas in the esophagus on the left lateral projection which appears to be deviated dorsally over the mass. The remainder of the pulmonary parenchyma and airways are normal. No abnormalities are noted in the pulmonary vasculature and the cardiac silhouette is normal.