title: Extraskeletal osteosarcoma located to the gallbladder.
abstract: Extraskeletal osteosarcoma is a rare malignant soft tissue tumour. At open cholecystectomy performed for gallstones, a 61-year-old woman was found to have osseous tissue in the wall of the gallbladder. Histopathological examination of the specimen revealed a focus of extraskeletal osteosarcoma. The patient developed widespread intra-abdominal metastases 5 months after the operation, and died of pulmonary deposits at 9 months. Although osteosarcoma has rarely been reported at other extraskeletal sites, this appears to be the first case of a primary tumour in the gallbladder.
authors.affiliation: Department of Surgery, Petz Aladár Teaching Hospital, Györ, Hungary. olgyai@freemail.hu
authors.forename: Gábor
authors.initials: G
authors.lastname: Olgyai
authors.forename: Viktor
authors.initials: V
authors.lastname: Horváth
authors.forename: Péter
authors.initials: P
authors.lastname: Banga
authors.forename: József
authors.initials: J
authors.lastname: Kocsis
authors.forename: Natália
authors.initials: N
authors.lastname: Buza
authors.forename: Attila
authors.initials: A
authors.lastname: Oláh