COLOCOLIC INTUSSUSCEPTION ASSOCIATED WITH INTESTINAL LEIOMYOSARCOMA IN A DOG

A 7-year-old neutered Standard Poodle was admitted due to chronic bloody diarrhea. The owner reported that the symptoms began approximately 5 months prior, including diarrhea, hyporexia, tenesmus, and weight loss. After performing a clinical examination, abdominal ultrasonography, plain radiography, and contrast rectal radiography, a diagnosis of colocolonic intussusception was made and confirmed by exploratory laparotomy. The procedure revealed that the cause of the obstruction and trigger of the intussusception was a mass that occluded more than 80% of the intestinal lumen. Histopathological analysis identified the mass as an intestinal leiomyosarcoma. This case represents one of the few published cases of colonic intussusception of neoplastic origin in a dog and highlights the utility of abdominal ultrasound and rectal contrast radiography for a timely diagnosis. Additionally, the complications associated with the therapeutic approach are emphasized. Kolokolična intususcepcija, povezana s črevesnim leiomiosarkomom pri psu Izvleček: Sedemletni kastrirani pudelj je bil sprejet zaradi kronične krvaveče driske. Lastnik je povedal, da so se simptomi začeli pred približno petimi meseci, vključno z drisko, hiporeksijo, tenezmi in izgubo telesne teže. Po opravljenem kliničnem pregledu, ultrazvočnem pregledu trebuha, navadni radiografiji in kontrastni rektalni radiografiji je bila postavljena diagnoza kolokolične intususcepcije, potrjene z eksplorativno laparotomijo. Postopek je pokazal, da je bila vzrok za zaporo in sprožitev intususcepcije masa, ki je zapirala več kot 80 odstotkov lumna črevesa. Histopatološka analiza je razkrila, da gre za črevesni leiomiosarkom. Ta primer je eden redkih objavljenih primerov intususcepcije debelega črevesa neoplastičnega izvora pri psu in poudarja uporabnost ultrazvoka trebuha in rektalne kontrastne radiografije za pravočasno diagnozo. Poleg tega so poudarjeni zapleti, povezani s terapevtskim pristopom. Ključne besede: intususcepcija; črevesna obstrukcija; kontrastna radiografija; črevesne neoplazme; leiomiosarkom