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Malignant melanoma of the third eyelid in a horse
Author(s) -
Albanese V.,
Newton J. C.,
Waguespack R. W.
Publication year - 2015
Publication title -
equine veterinary education
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 31
eISSN - 2042-3292
pISSN - 0957-7734
DOI - 10.1111/eve.12012
Subject(s) - medicine , eyelid , histopathology , melanoma , horse , histopathological examination , surgery , surgical excision , dermatology , pathology , paleontology , cancer research , biology
Summary An 8‐year‐old grey Q uarter H orse gelding was referred for evaluation of a rapidly growing mass associated with the third eyelid of the left eye. A pigmented mass of approximately 2 cm in diameter was palpated and visualised associated with the conjunctival lining of the nictitans. It was not possible to palpate normal nictitans deep to the base of the mass. A full dermatological examination revealed no other melanomas in common sites. Based on the size and rapid growth of the mass, surgical excision and one application of local chemotherapy was performed under general anaesthesia. Histopathology confirmed the diagnosis of malignant melanoma and the presence of clean surgical margins. There was no recurrence at 5 weeks post surgery. To our knowledge, this is the first report of a primary malignant melanoma of the third eyelid in a horse.