Rectal duplication cyst in a cat

Abstract

Enteric duplication is a rare developmental malformation in people, dogs and cats. The purpose of the present report is to describe the first case of a rectal duplication cyst in a 7-year-old domestic shorthair cat presenting for acute constipation and tenesmus. On rectal palpation a spherical mass compressing the lumen of the rectum could be felt in the dorsal wall of the rectum. A computed tomography (CT) scan confirmed the presence of a well demarcated cystic lesion in the pelvic canal, dorsal to the rectum. The cyst was surgically removed via a perineal approach. No communication with the rectal lumen could be demonstrated. Histopathological examination was consistent with a rectal duplication cyst. Clinical signs resolved completely after excision of this conjoined non-communicating cystic rectal duplicate.

Imaging Diagnosis—radiographic, Ultrasonographic, and Computed Tomographic Characteristics of a Duodenal Duplication Cyst in a Young Cat

“…Intestinal duplication cysts are uncommon congenital malformations reported in humans, dogs, and cats, and can occur anywhere along the gastrointestinal tract. In cats, duplication has been reported in the duodenum ileum, colon, rectum, and esophagus . In humans and dogs, ultrasonographic features of double‐layered wall or “muscular rim” sign, hyperechoic mucosa, and hypoechoic muscle layer are relatively specific for enteric duplication .…”

“…Computed tomography and magnetic resonance imaging can define the precise anatomic location and can be helpful in difficult cases that require a multiplanar approach . In this patient, a CT scan was performed to plan the surgery and to exclude other congenital defects, especially vertebral anomalies that have been previously associated with distal intestinal duplications . No vertebral anomalies were noted on the abdominal radiograph or CT study.…”

Non-communicating small intestinal duplication in a dog: a case report

“…Enteric duplication is a rare developmental malformation in veterinary medicine (Radlinsky et al 2005 ;Kook et al 2010). Grossly, duplicated intestinal segments are usually blind sacs or cysts that share a wall with the normal intestine (Spaulding et al 1990).…”

Kolonzyste bei einer Katze mit rezidivierender Konstipation und abdominaler Dolenz

“…Die Besei tigung dieser Symptomatik nach der Operation des Patienten spricht für diese Hypothese. In zwei der wenigen Fallberichte über Duplikationen distaler Darmabschnitte bei der Katze wurden ähnliche Symptome (Schwierigkeiten beim Kotabsatz) beschrieben (6,8). Unser Patient hatte bereits in der Vergangenheit Episoden von Konstipation gezeigt, die jedoch ohne erforderlichen Medikamenteneinsatz vorübergingen.…”

“…Ektopisches Gewebe kann im Inneren des Meckel-Divertikels (16) wie auch der Duplikationszyste (18) gefunden werden. In der Veterinärmedizin wurden nur einige Fälle einer enterischen Duplikation, vor allem bei der Katze, nachgewiesen (6,8,11,14).…”