Erciyes Üniversitesi Veteriner Fakültesi Dergisi, cilt.17, sa.1, ss.84-87, 2019 (TRDizin)
Squamous cell carcinoma (SCC) of the third eyelid membrane (also known as the nictitating membrane)
was diagnosed in a 34-year-old African grey parrot (Psittacus erithacus) that was presented to the clinics of our faculty
for unilateral periorbital swelling, blepharospasm, severely bleeding of 2 months duration. A large, hard, yellow mass
on the bulbar surface of the third eyelid membrane that was attached to the ventro-medial quadrant of the bulbar conjunctiva was identified under general anesthesia. Surgical removal of the mass was performed but the bird died just
after the operation. The left globe with adnexal tissues and the body of bird were submitted for histopathological examination. The dimensions of the solitary mass were 0.8x1 cm and the histopathological examination revealed SCC. There
was no evidence of metastasis in the globe and other organs.