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Infraorbital Keratin Cyst in an Umbrella Cockatoo (Cacatua alba)
Rachel C Turner1, Jennifer E Graham2, Shelley Hahn3
1Department of Comparative Diagnostics and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA.
Abstract:
A 10-year-old, female umbrella cockatoo (Cacatua alba) was presented for evaluation of a mass at the right commissure of the beak, with associated right periorbital swelling. A feather cyst was suspected, based on history and the results of a computed tomography scan and fine-needle aspirate. The cyst was surgically debrided and removed. Histopathologic results confirmed an infraorbital keratin cyst, most likely originating from a feather follicle. To our knowledge, this is the first reported case of a periorbital keratin cyst in a bird.

