title: Spontaneous rhabdomyosarcomas in aged Mastomys (Praomys coucha).
abstract: Two spontaneous tumours in the hind leg of 2 aged Mastomys were diagnosed as poorly differentiated rhabdomyosarcomas. In both cases, the neoplastic cells had no evidence of cross-striation, but had a positive reaction for muscle-specific proteins. This is the second report of rhabdomyosarcomas in Mastomys, and the first described in detail.
authors.affiliation: Department of Laboratory Animal Science, School of Veterinary Medicine and Animal Sciences, Kitasato University, Aomori, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Madarame
authors.forename: Y
authors.initials: Y
authors.lastname: Kashimoto
authors.forename: T
authors.initials: T
authors.lastname: Kawamoto
authors.forename: S
authors.initials: S
authors.lastname: Toyonaga
authors.forename: Y
authors.initials: Y
authors.lastname: Hasegawa
mesh_terms: D000818:Animals; D000830:Animals, Laboratory; D003893:Desmin / Q000032:analysis; D015726:Giant Cells / Q000473:pathology; D006614:Hindlimb; D007150:Immunohistochemistry; D009115:Muridae; D019042:Muscle Neoplasms / Q000737:chemistry / Q000473:pathology / Q000662:veterinary*; D009211:Myoglobin / Q000032:analysis; D012208:Rhabdomyosarcoma / Q000737:chemistry / Q000473:pathology / Q000662:veterinary*; D012376:Rodent Diseases / Q000378:metabolism / Q000473:pathology*
chemical_list: D003893:Desmin; D009211:Myoglobin