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Hemangiosarcoma and squamous cell carcinoma in the third eyelid of a horse
Author(s) -
Gearhart Patricia M.,
Steficek Barbara A.,
PeteresenJones Simon M.
Publication year - 2007
Publication title -
veterinary ophthalmology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.594
H-Index - 50
eISSN - 1463-5224
pISSN - 1463-5216
DOI - 10.1111/j.1463-5224.2007.00510.x
Subject(s) - histopathology , eyelid , hemangiosarcoma , basal cell , medicine , pathology , horse , metastasis , histopathological examination , surgery , cancer , biology , angiosarcoma , paleontology
A 12‐year‐old Belgian draft horse presented for a right eye third eyelid mass and red‐tinged ocular discharge of 3 months’ duration. The third eyelid was excised and submitted for histopathology. On histopathologic examination, the mass was composed of both hemangiosarcoma and squamous cell carcinoma. The horse developed thickened eyelids and hemorrhagic ocular discharge from the right eye approximately 16 months following surgery, and was euthanized. Necropsy and histopathology confirmed local recurrence and regional metastasis of the hemangiosarcoma. This was an unusual case because there were two distinct neoplastic processes composing the same mass that could not be differentiated grossly.