A citron-crested cockatoo (Cacatua sulphurea citrinocristata) was referred for a recurring feather cyst involving the dorsal major covert overlying primary feather VIII on the left manus. Surgical removal of the affected follicle was successful using a surgical retractor system, an operating microscope, a bipolar radiosurgical unit, and microsurgical instrumentation. The cyst has not recurred during the 2 years following surgery, and no new cysts have formed on adjacent feathers. Previously published reports suggest that feather cyst removal is unrewarding because cysts frequently recur after lancing, curettage, or fulguration. This report provides a description of complete feather follicle removal that may be a superior method for handling cystic follicles.
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Vol. 17 • No. 2