Diaphragmatic hernia

Case contributed by Allison L Zwingenberger
Diagnosis certain

Presentation

Presented after being hit by a car approximately two weeks prior. For past two days has had increased respiratory rate.

Patient Data

Age: 2 years
Gender: Spayed female
Category: Domestic dog
Organism: Boxer dog

Thorax

x-ray

There is marked pleural effusion with retraction of the lung lobes. The cardiac silhouette is outlined by the pericardial fat and is elevated from the sternum. The stomach is cranially deviated and rugal folds travel in the direction of the thorax.

Horizontal beam

x-ray

A horizontal beam was taken with the dog in dorsal recumbency. The fluid has moved to the dorsal thorax and the gas in the stomach is clearly outlining the stomach at the highest point of the thorax. The stomach is cranially displaced to the level of the diaphragm or into the thoracic cavity.

Case Discussion

Diaphragmatic hernia. The liver is likely displaced into the thorax because of its position cranial to the stomach and the elevation of the heart from the sternum. The stomach may be at the diaphragm or in the thoracic cavity.

The horizontal beam radiograph takes advantage of physics to displace the fluid ventrally and the gas dorsally. This allows us to see the stomach position more clearly, although the liver is still not visible.

A laparotomy was performed and found two diaphragmatic tears in the central and right regions. Two liver lobes were retrieved from the thoracic cavity and the diaphragm was repaired.

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