title: Polypoid adenomas secondary to inflammatory colorectal polyps in 2 miniature dachshunds.
abstract: Two miniature dachshunds, a 7-year-old neutered male and an 8-year-old male, presented with chronic hematochezia and tenesmus. A solitary pedunculated or multiple diffuse colorectal polyps were identified by colonoscopy and resected by polypectomy. Inflammatory colorectal polyps (ICRPs) were diagnosed according to histopathological findings. Both cases were treated with immunosuppressive therapy, and the clinical signs were resolved, although the colorectal polyps remained to some extent. Several months after the initial diagnosis, both cases presented with recurrence of hematochezia and enlargement of the polyps. A second colonoscopic polypectomy was performed, and adenoma was diagnosed histopathologically in both cases. ICRPs are a nonneoplastic disease, but their long-term prognosis is unknown. Careful follow-up seems to be important, and repetitive biopsy is recommended when growth of polyps is identified in miniature dachshunds with ICRPs.
authors.affiliation: Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan.
authors.forename: Hirotaka
authors.initials: H
authors.lastname: Igarashi
authors.forename: Koichi
authors.initials: K
authors.lastname: Ohno
authors.forename: Aki
authors.initials: A
authors.lastname: Ohmi
authors.forename: Atsushi
authors.initials: A
authors.lastname: Tsukamoto
authors.forename: Ko
authors.initials: K
authors.lastname: Nakashima
authors.forename: Yasuhito
authors.initials: Y
authors.lastname: Fujino
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Uchida
authors.forename: Hajime
authors.initials: H
authors.lastname: Tsujimoto
mesh_terms: D018256:Adenomatous Polyps / Q000188:drug therapy / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D000818:Animals; D003111:Colonic Polyps / Q000188:drug therapy / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D015179:Colorectal Neoplasms / Q000188:drug therapy / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D004283:Dog Diseases / Q000188:drug therapy / Q000473:pathology* / Q000601:surgery; D004285:Dogs; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000188:drug therapy / Q000473:pathology / Q000601:surgery / Q000662:veterinary