title: Extra-abdominal chondrolipoma in a dog.
abstract: A 10-year-old male maltise dog was presented for evaluation of a gradual abdominal enlargement, which had developed over 2 years. (On the radiograph of the abdomen, a significant distention of the abdomen with a large accumulation of fat could be seen.) The mass effect was noticeable because of the rightward displacement of the viscera. There was multifocal amorphous mineralization, mostly in the right abdomen. Computed tomography (CT) identified a 13 x 13 x 10 cm mass, most likely an intra-abdominal lipoma, by which the digestive tract had been displaced in the abdomen. It was only during surgery, however, that the mass was found to be located between the peritoneum and transversus abdominis muscles and the rectus abdominus muscle. It was completely resected. Histopathological examination revealed that the mass was chondrolipoma. The amorphous radiopaque lesion on the images corresponded to cartilaginous tissues with calcification. There has been no recurrence for 10 months. This is the first report of an extra-abdominal chondrolipoma in dogs. Cartilaginous metaplasia of lipoma, located in the abdominal area, should be included in the differential diagnosis for multifocal amorphous mineralization.
authors.affiliation: Department of Veterinary Clinical Science, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan.
authors.forename: Shigeyuki
authors.initials: S
authors.lastname: Tanabe
authors.forename: Kazutaka
authors.initials: K
authors.lastname: Yamada
authors.forename: Yoshiyasu
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Koudai
authors.initials: K
authors.lastname: Suzuki
authors.forename: Miho
authors.initials: M
authors.lastname: Yamaguchi
authors.forename: Yuji
authors.initials: Y
authors.lastname: Uzuka
authors.forename: Takao
authors.initials: T
authors.lastname: Sarashina
authors.forename: Michiyo
authors.initials: M
authors.lastname: Inoue
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D004285:Dogs; D008067:Lipoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*; D008297:Male; D014057:Tomography, X-Ray Computed