Rhabdomyosarcoma in a young rat.
A spontaneous rhabdomyosarcoma was observed in a female Sprague Dawley-derived rat at 8 weeks of age. Histopathological examination when the rat was killed at 5 months of age revealed marked differences from experimentally-induced tumours.
D000818:Animals; D000830:Animals, Laboratory; D005260:Female; D051381:Rats; D011919:Rats, Inbred Strains; D012208:Rhabdomyosarcoma / Q000473:pathology / Q000662:veterinary*; D012376:Rodent Diseases / Q000473:pathology*; D012983:Soft Tissue Neoplasms / Q000473:pathology / Q000662:veterinary*