Successful Cryosurgical Treatment of Limbal Melanoma in a Dog's Eye

Abstract

This is a case report of successful cryosurgical treatment for limbal masses in the left eye of a two-year-old, flat-coated retriever. Topical treatment could not suppress the growth of the tumors. In gonioscopy no lesion could be observed in either the iridocorneal angles or the internal surface. Lamellar corneoscleral excision and biopsy were performed, and melanoma was conformed histologically. Since the melanoma was developed again at the same site one month after the surgery, it was removed by cryosurgery. The dog has been in good condition without recurrence for 18 months since the cryosurgery, although lipid keratopathy has persisted in the left eye.