Diaphragmatic rupture

Case contributed by Allison L Zwingenberger
Diagnosis certain

Presentation

Presents with increased respiratory effort. A diaphragmatic rupture had been repaired several years ago.

Patient Data

Age: 7 years
Gender: Spayed female
Category: Domestic cat
Organism: Domestic medium-haired cat

Thorax

x-ray

There is a significant increase in fat opacity within the cranioventral thorax. The heart is caudodorsally displaced. The xyphoid is displaced dorsally and multiple metallic sutures are identified within the ventral abdomen. The cardiac silhouette is difficult to visualize on the VD projection due to overlying fat. The right diaphragmatic crus is difficult to visualize on the ventrodorsal projections.

Thorax

ct

A large amount of fat is present within the thorax, predominantly cranially and within the right hemithorax. There is complete atelectasis of the right lung lobes and the accessory lung lobe, and partial atelectasis of the caudal subsegment of the left cranial lung lobe. The heart is displaced to the left. Falciform fat can be seen extending through a rent in the diaphragm. Multiple metal dense sutures are seen in the region of the ventral diaphragm. There is dorsal displacement of the caudal sternebral segment.

Case Discussion

Diaphragmatic rupture with displacement of fat into the thoracic cavity.

A diaphragmatic rupture was confirmed by CT, and surgery was performed to repair the defect. Omentum and falciform fat were present in the thoracic cavity and were returned to the abdomen.

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