Clinical evaluation and surgical intervention for diaphragmatic eventration mimicking peritoneopericardial hernia in a cat.

A 2-year-old spayed female British Shorthair cat presented with an increased frequency and duration of cough since infant period. Based on radiographic, ultrasonographic, and computed tomography findings, peritoneopericardial diaphragmatic hernia was considered so that repair surgery was planned. During celiotomy, lax diaphragm was identified instead of defect. Transabdominal diaphragmatic plication was performed to resolve lax diaphragm and to prevent recurrence by overlapping relatively normal part of diaphragm. Diagnosed with diaphragmatic eventration postoperatively, the cat showed improvement in clinical signs and imaging results. Transabdominal diaphragmatic plication is a suitable treatment; the patient maintained normally during a 14-month follow-up period.

Congenital diaphragmatic eventration in two closely related British Shorthair cats.

Two closely related British Shorthair cats, which died after surgery performed in the dorsal position, were presented for dissection. In both, a thin, flaccid, enlarged transparent tendinous diaphragmatic portion protruded cranially into the thoracic cavity, forming a cupola in which left, right medial and quadrate hepatic lobes were encased in both cats and the stomach in one cat. Microscopically, no muscle fibres were observed in the membrane, but numerous hepatocytes and bile ducts were incorporated in its central part. The anomaly was diagnosed as a congenital diaphragmatic eventration.

Congenital diaphragmatic eventration in a stillborn foal.

A stillborn full term foal was presented at necropsy. The dilated duodenum and the dorsal and ventral left colon and cecum extended into the thoracic cavity and were encased by a thin transparent membrane originating from the diaphragm. The congenital condition was diagnosed as a developmental anomaly with diaphragmatic eventration. To the authors' knowledge, this is the first report of diaphragmatic eventration in a Thoroughbred stillborn foal.

[Simple diaphragmatic eventration (false diaphragmatic hernia) as the cause of a fatally progressing colic in a horse]. / Eventratio diaphragmatica simplex (falsche Zwerchfellhernie) als Ursache einer tödlich verlaufenen Kolik beim Pferd. Kurzmitteilng.

The pathology of a horse is described, in which thoracic trauma with costal fracture and a small diaphragmatic defect later led to entrapment of small intestine in the thorax.

[Diaphragmatic eventration in a breeding sow]. / Eventratio diaphragmatica bei einer Zuchtsau.

A sow of 190 kg weight suddenly died, one day before due to delivery, though seeming to be quite healthy a few hours previously. Pathomorphological investigation revealed a 11 cm wide gap in the diaphragma in the area of the hiatus oesophageus with an eventratio diaphragmatica simplex incarcerata. The pathogenesis is suggested to be a widening of an inborn small gap in the diaphragma through the increase of intraabdominal pressure due to pregnancy and beginning labour.