Heterotopic gastric mucosa associated with abdominal abscess formation, hypotension, and acute abdominal pain in a puppy

Abstract

Heterotopic gastric mucosa is commonly found incidentally on necropsy. When it has been associated with acute gastrointestinal signs, mechanical intestinal obstruction with or without perforation was noted. To the authors' knowledge, this is the first reported case of heterotopic gastric mucosa leading to abscess formation and acute abdominal pain in the dog.

Life-threatening gastrointestinal bleeding caused by jejunal heterotopic gastric mucosa in an adult dog: a rare case report

“…Tobleman and Sinnott [ 33 ] described a case of a 7-month-old dog with a congenital malformation of HGM with secondary bacterial infection located in the mid-jejunum, and although this dog presented a severe clinical condition, gastrointestinal signs were not present. A very severe case of gastrointestinal bleeding, leading to death, of a 7-year-old boy was described by Lambert et al [ 34 ].…”

“…In veterinary medicine, since HGM is a rare incidental finding, necropsy is the most commonly described diagnostic method [ 16 , 18 ]. However, with constant improvement in treatment options and increasing compliance of owners, some symptomatic cases with heterotopia have been found in the living animal [ 33 , 39 ]. In these cases, the final diagnosis was made by histopathological examination of resected specimens.…”

“…Described HGM in dogs often consists of several epithelial cell types, corresponding to normal gastric mucosa [ 16 , 17 , 33 ]. These could also extend into the submucosa [ 16 ], which has been also reported in humans [ 2 ].…”

“…These could also extend into the submucosa [ 16 ], which has been also reported in humans [ 2 ]. They also have been associated with diverticular lesions of the intestine [ 33 , 41 ]. Terada [ 9 ] hypothesized that HGM made up of several cell types is more likely of congenital origin representing a malformation, in contrast to areas of purely foveolar gastric cells inside the intestinal mucosa, which could rather be the result of metaplasia.…”

Retrospective characterisation and outcome of canine idiopathic mesenteric purulent lymphadenitis and lymph node abscesses at a teaching hospital from 2005 to 2015

“…), traumatic injury to organs (Schulz et al . ), and organ metaplasia or ectopy (Tobleman & Sinnott ). The presence of diffuse inflammatory gastrointestinal (GI) disease (e.g.…”