title: Food intolerance mimicking alimentary lymphosarcoma.
abstract: A cat with chronic diarrhea was diagnosed as having duodenal lymphosarcoma on two separate sets of endoscopic biopsies. Prednisolone failed to effect any clinical improvement. However, feeding the cat with a hypoallergenic diet resulted in long-term (i.e., six months) resolution of clinical signs. Most clinicians are familiar with the possibility of mistakenly diagnosing inflammatory bowel disease when the patient has lymphosarcoma; however, this case had the opposite problem: lymphosarcoma was diagnosed histologically on two separate occasions when inflammatory bowel disease was the problem.
authors.affiliation: Department of Small Animal Medicine and Surgery, Texas A&M University, College Station 77843, USA.
authors.forename: M L
authors.initials: ML
authors.lastname: Wasmer
authors.forename: M D
authors.initials: MD
authors.lastname: Willard
authors.forename: R G
authors.initials: RG
authors.lastname: Helman
authors.forename: J F
authors.initials: JF
authors.lastname: Edwards
mesh_terms: D000818:Animals; D001706:Biopsy / Q000662:veterinary; D002371:Cat Diseases / Q000175:diagnosis* / Q000473:pathology; D002415:Cats; D002908:Chronic Disease; D003937:Diagnosis, Differential; D003967:Diarrhea / Q000209:etiology / Q000662:veterinary; D004379:Duodenal Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D004386:Duodenum / Q000473:pathology; D005512:Food Hypersensitivity / Q000175:diagnosis / Q000209:etiology / Q000662:veterinary*; D015212:Inflammatory Bowel Diseases / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D008297:Male