Ocular lesions in horses with lymphosarcoma: 21 cases (1977-1997).
OBJECTIVE
To determine the most common ocular lesions in horses with lymphosarcoma.


METHODS
Retrospective study.


METHODS
79 horses histologically confirmed to have lymphosarcoma.


METHODS
Ophthalmic examinations were performed by a single individual.


RESULTS
21 of 79 horses had lesions involving the eye or ocular adnexa. Infiltration of the palpebral conjunctiva and eyelids was the most common lesion (n = 11). Other lesions included uveitis (n = 4), corneoscleral masses (2), third eyelid masses (2), and diffuse retrobulbar infiltrates (2).


CONCLUSIONS
In horses with lymphosarcoma, ocular lesions may precede or be more obvious than lymph node enlargement or signs of visceral involvement. Early recognition of ocular lesions suggestive of lymphosarcoma may allow a more rapid diagnosis of lymphosarcoma in horses.
Rebhun
W C
WC
Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853-6401, USA.
Del Piero
F
F
D000818:Animals; D005123:Eye / Q000473:pathology*; D005134:Eye Neoplasms / Q000473:pathology / Q000662:veterinary*; D005260:Female; D006734:Horse Diseases / Q000473:pathology*; D006736:Horses; D008228:Lymphoma, Non-Hodgkin / Q000473:pathology / Q000662:veterinary*; D008297:Male; D012189:Retrospective Studies