Pineoblastoma, a primitive neuroectodermal tumor in the brain of a horse.
D000818:Animals; D001932:Brain Neoplasms / Q000473:pathology / Q000662:veterinary*; D004475:Ectoderm; D006734:Horse Diseases / Q000473:pathology*; D006736:Horses; D008297:Male; D010871:Pinealoma / Q000473:pathology / Q000662:veterinary*