title: A case of astrocytoma in an aged rat.
mesh_terms: D000818:Animals; D001254:Astrocytoma / Q000648:ultrastructure / Q000662:veterinary*; D001932:Brain Neoplasms / Q000648:ultrastructure / Q000662:veterinary*; D003599:Cytoskeleton / Q000648:ultrastructure; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D012376:Rodent Diseases / Q000473:pathology*