Ocular surface squamous neoplasia (OSSN) is a term that incorporates dysplastic lesions originating within the epithelium of the conjunctiva or cornea, including conjunctival intraepithelial neoplasia (CIN) and invasive squamous cell carcinoma. When occurring at the limbus—the most common location—a gelatinous, papillary, or leukoplakic appearance is displayed.1 Corneal extension usually displays a thin, translucent, grey “frosted” zone. We describe herein an unusual case of limbal conjunctival squamous cell carcinoma that extended as a substantial mass onto the cornea and contained multiple clinically-apparent microcysts.
Ocular surface squamous neoplasia (OSSN) is a term that incorporates dysplastic lesions originating within the epithelium of the conjunctiva or cornea, including conjunctival intraepithelial neoplasia (CIN) and invasive squamous cell carcinoma. When occurring at the limbus—the most common location—a gelatinous, papillary, or leukoplakic appearance is displayed.1 Corneal extension usually displays a thin, translucent, grey “frosted” zone. We describe herein an unusual case of limbal conjunctival squamous cell carcinoma that extended as a substantial mass onto the cornea and contained multiple clinically-apparent microcysts.