Melanotic hamartoma of the hind brain in a riding horse.
A 3 1/2-year-old bay gelding of the cob type showed nervous signs and coughing associated with breaking-in and exercise. At post-mortem examination, heavy melanin pigmentation of the meninges of the hind brain and the medulla was identified and, on histological examination, melanin-containing cells were found within connective tissue extending into the medulla. The lesion was considered to be a melanotic hamartoma.
Mair
T S
TS
Department of Veterinary Medicine, University of Bristol, School of Veterinary Science, Langford, Avon, U.K.
Pearson
G R
GR
D000818:Animals; D001766:Blindness / Q000209:etiology / Q000662:veterinary; D001932:Brain Neoplasms / Q000473:pathology / Q000662:veterinary*; D006222:Hamartoma / Q000473:pathology / Q000662:veterinary*; D006734:Horse Diseases / Q000473:pathology*; D006736:Horses; D008297:Male; D008548:Melanosis / Q000473:pathology / Q000662:veterinary*; D008577:Meningeal Neoplasms / Q000473:pathology / Q000662:veterinary*; D012249:Rhombencephalon