Multiple Cystic Intestinal Duplications in a Cat

Abstract

Abstract. A 7-year-old, female European shorthair cat with a history of recurrent vomiting had a 2-cm cystic mass in the midjejunum. Cross-sectioning and histology revealed 3 separate cystic structures in the muscular layer, in addition to a regularly structured intestinal lumen. One cyst had a 3-layered wall consisting of a dysplastic mucosa, a regularly structured submucosa, and partly double-layered muscularis that sporadically contained neurons resembling a myenteric plexus. The remaining 2 cysts had similar structures except for granulation tissue lining the lumen. The lesion was diagnosed as multiple cystic duplications in the midjejunum, which is unknown to the veterinary literature to date.

Rectal duplication in an adult cat: a novel transanal surgical approach

“…Digestive tract duplication is a rare condition that has been reported in humans, in 10 dogs, [1][2][3][4][5][6][7][8][9] and in eight cats. [10][11][12][13][14][15][16][17] In humans, the reported incidence is approximately one in 4500 live births. 18 In 1952, the human literature established that, to be classified as such, a duplication must comprise a contact at any point with the alimentary tract, and a smooth muscular coat and mucosa that should resemble that of the digestive tract at any of its levels.…”

Pathology in Practice

“…[1][2][3][4][5][6][7][8][9][10][11][12] Typically, duplication cysts consist of a blind pouch or cyst attached to the alimentary tract. [1][2][3][4][5][6][7][8][9][10][11][12] Typically, duplication cysts consist of a blind pouch or cyst attached to the alimentary tract.…”

“…They are most commonly associated with the ileum 1 but may be located anywhere along the entire alimentary tract, including the esophagus, 3,10 stomach, 12 small intestine, 4,5,8,9 and colon. 2,[5][6][7]9,12 Because duplication cysts may develop anywhere along the alimentary tract and clinical signs are nonspecific, diagnosis can be difficult and usually requires surgical exploration and histologic examination of appropriate specimens. Clinical signs include choking or respiratory distress (usually observed with esophageal duplication cysts), 10 signs of epigastric pain, emesis, diarrhea, constipation, signs of depression, abdominal distension, peritonitis, tenesmus, rectal prolapse, or signs of back pain.…”

“…12 Successful surgical removal of duplication cysts involving the esophagus, 3,10 jejunum, 4,8,9 and colon 6,7 has been performed in dogs, cats, and a horse; however, euthanasia is often selected in complicated cases that have other congenital malformations. 12 Successful surgical removal of duplication cysts involving the esophagus, 3,10 jejunum, 4,8,9 and colon 6,7 has been performed in dogs, cats, and a horse; however, euthanasia is often selected in complicated cases that have other congenital malformations.…”

Imaging Diagnosis—ultrasonographic Appearance of Small Bowel Metastasis From Canine Mammary Carcinoma

“…The differential diagnosis for the nodules affecting the muscularis layer of the jejunum included nodular infiltration due to primary intestinal neoplasia (lymphoma, mast cell tumor, disseminated histiocytic sarcoma) or metastatic infiltration. Other differentials such as intestinal smooth muscle tumor, muscular hypertrophy, muscular hyperplasia, hematoma, or granuloma, were considered less likely …”