Gastro-gastric intussusception in 3 dogs

Ultrasonographic and radiographic features of a true gastrogastric intussusception with spontaneous resolution in a cat

“…Exacerbation of these conditions combined with the fasted state of the patient at the time of presentation may have resulted in imperceptible gastritis, gastric wall oedema, increased intraabdominal pressure, or gastric hypermotility that precipitated the development of the intussusception. Gastritis, gastric wall hyperplasia and/or gastric wall oedema was confirmed in most reported canine case of gastrogastric intussusceptions and has previously been described as a sequela of pancreatitis in dogs (Graham et al., 2020 ; Murakami et al., 2019 ; Testault et al., 2022 ). While the ultrasonographic features of the current case did not support a diagnosis of gastric wall oedema, the presence of pancreatitis and evidence of chronic portal hypertension on histopathology did not rule out the possibility of imperceptible gastric wall oedema at the time of diagnosis.…”

“…The clinical signs of the cat in the current report were acute, lasting a few days, and differentiated from the shorter duration (<24 h) of the acute clinical signs of vomiting and hematemesis described in dogs and did not include the clinical signs of abdominal pain and weight loss described in human patients (Behrooz & Cleasby, 2018 ; Graham et al., 2020 ; Vikram et al., 2006 ). Additionally, the reported dogs had no prior history of vomiting, unlike the cat in this report, and acute relapse of the intermittent mild vomiting episodes was also considered (Graham et al., 2020 ; Testault et al., 2022 ). Chronic intermittent clinical signs of vomiting in a dog are also reported in a small case series (Testault et al., 2022 ).…”

“…Additionally, the reported dogs had no prior history of vomiting, unlike the cat in this report, and acute relapse of the intermittent mild vomiting episodes was also considered (Graham et al., 2020 ; Testault et al., 2022 ). Chronic intermittent clinical signs of vomiting in a dog are also reported in a small case series (Testault et al., 2022 ). The primary concern of vomiting in the cat differed from the more prevalent signs of lethargy and anorexia reported in cats with intussusception (Burkitt et al., 2009 ; Patsikas et al., 2003 ).…”

“…A report by Testault et al. ( 2022 ) evaluated intussusceptions in cats, regardless of their classification, and found a bimodal age distribution, which also differs from reports of young dogs being more commonly affected. Feline intussusceptions are prevalently enteroenteric, more often reported to be jejunojejunal and ileocolic, and rarely involve the stomach (Burkitt et al., 2009 ; Levitt & Bauer, 1992 ).…”

“…As previously defined, in contrast to pylorogastric or duodenogastric intussusceptions, true gastrogastric intussusceptions represent invagination of the gastric fundus into the lumen of the gastric body (Graham et al., 2020 ; Vikram et al., 2006 ). This finding has been rarely reported in human literature and is predominantly diagnosed in older human patients (greater than 65 years of age), while only young dogs are affected in the very few available peer‐reviewed veterinary publications (Behrooz & Cleasby, 2018 ; Graham et al., 2020 ; Testault et al., 2022 ; Vikram et al., 2006 ). The current report describes a similar finding in a mature cat, suggesting that a different age distribution may exist between species.…”