10 year old mixed breed dog

Findings

On the right lateral projection, there is a rounded soft tissue nodule dorsal to the caudal vena cava, superimposed on the crura of the diaphragm. The nodule is superimposed over the fluid-filled esophagus on the left lateral projection. The nodule is again seen on the ventrodorsal projection superimposed on the caudal vena cava to the right of the spine. The remainder of the pulmonary parenchyma is normal. No abnormalities are noted in the pleural space or mediastinum. The cardiovascular structures are normal. The liver is moderately enlarged.