title: Primary malignant mixed mesenchymal tumour of the heart in a dog.
abstract: A case of primary malignant mixed mesenchymal tumour of the heart in an 8-year-old golden retriever is described. The cardiac tumour, measuring 2.5 x 3 x 5 cm, was located in the posterior part of the atrial septum, extending into the surrounding region. Histologically, the tumour was composed of multiple mesenchymal elements of fibrosarcoma, rhabdomyosarcoma, liposarcoma and chondrosarcoma. No previous reports of such a tumour occurring in the heart of the dog were found in the literature.
authors.affiliation: Department of Veterinary Pathology, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Machida
authors.forename: M
authors.initials: M
authors.lastname: Kobayashi
authors.forename: R
authors.initials: R
authors.lastname: Tanaka
authors.forename: S
authors.initials: S
authors.lastname: Katsuda
authors.forename: K
authors.initials: K
authors.lastname: Mitsumori
mesh_terms: D000818:Animals; D002813:Chondrosarcoma / Q000473:pathology / Q000662:veterinary; D004283:Dog Diseases / Q000473:pathology*; D004285:Dogs; D037901:Euthanasia, Animal; D017809:Fatal Outcome; D005354:Fibrosarcoma / Q000473:pathology / Q000662:veterinary; D006338:Heart Neoplasms / Q000473:pathology / Q000662:veterinary*; D006346:Heart Septum / Q000473:pathology; D008080:Liposarcoma / Q000473:pathology / Q000662:veterinary; D008297:Male; D008637:Mesenchymoma / Q000473:pathology / Q000662:veterinary*; D018198:Mixed Tumor, Malignant / Q000473:pathology / Q000662:veterinary*; D012208:Rhabdomyosarcoma / Q000473:pathology / Q000662:veterinary