Today’s case is a 6-year-old Labrador Retriever presented for a two-day history of lethargy and anorexia and respiratory distress. What are your differential diagnoses?
There is a severe retraction of the right lung lobes from the thoracic wall. Pleural fissure lines are visible in the right and left side of the thorax. There is an increased soft tissue opacity in the right caudal lung lobe. There is irregular mineral opacity associated with the right middle lung lobe visible on the DV projection and the right lateral projection. On the left side the lung lobe margins are mildly rounded. The cardiac silhouette is difficult to identify. Within the viewable abdomen there is decreased serosal detail.
- Severe pleural effusion on the right side and minimal pleural effusion on the left side.
- Alveolar pattern R caudal lobe – Ddx thoracic mass effect, potential origin include accessory lung lobe, pleural cavity or caudal mediastinum. Ddx Hemorrhage, neoplasia, abscess, or lung lobe torsion
- Abdominal effusion (transudate, exudate, hemorrhage).
The patient was euthanized without necropsy.