title: Pelvic aneurysmal bone cyst in a dog.
abstract: A three-year-old male Siberian Husky dog was referred to the Veterinary Teaching Hospital in Osaka Prefecture University with a complaint of difficulty in expelling the stools. By rectal examination, a mass as big as a fist could be detected occupying the cavum pelvis. Radiographically the mass had a thin bony shell bulging from the pubic periosteum. In the shell, radiolucent trabeculation gave the area a "soap bubble" appearance. The cut surface of the removed mass showed a honeycomb-like pattern constituted of some small loculate bony cysts. These cysts were separated from each other by a fibrous or bony trabeculae with blood-filled vascular channels or sponge-like structures. From clinical and pathological findings, this mass was diagnosed as a pelvic aneurysmal bone cyst. After surgery, the patient completely recovered without tenesmus.
authors.affiliation: Department of Veterinary Science, Faculty of Agriculture, Osaka Prefecture University, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Nomura
authors.forename: K
authors.initials: K
authors.lastname: Sato
mesh_terms: D000818:Animals; D017824:Bone Cysts, Aneurysmal / Q000175:diagnosis / Q000601:surgery / Q000662:veterinary*; D003248:Constipation / Q000209:etiology / Q000662:veterinary; D004283:Dog Diseases; D004285:Dogs; D008297:Male; D010384:Pelvic Bones / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D011859:Radiography