Abstract
To describe the clinical features and management of extensive ocular surface squamous neoplasia (OSSN) (squamous cell carcinoma) of the socket. Retrospective interventional case series. Interferon α 2b (IFNa2b) eye drops (1 million units/cc) 4 times daily and IFNa2b sublesional injection (5 million units/0.5cc to 8 million units/0.8 cc) were delivered for tumor control. Participants were 3 patients with ocular prosthesis who developed extensive socket OSSN. Tumor control was graded as complete regression, partial regression, or no regression. OSSN was detected in the socket at age 60, 43, and 20 years in patients who had worn ophthalmic prostheses for 54, 26, and 13 years, respectively. The patients had chronic discharge and irritation (n = 3) managed with intermittent topical corticosteroids (n = 2). There were no predisposing factors of cigarette exposure, radiation exposure, eczema, systemic immune suppression, or organ transplantation. The prosthesis fit well with nonirritative edges. At presentation, OSSN was subtle (n = 3), vascular (n = 3), and multifocal (n = 3), with largest lesions or confluence of lesions measuring 20, 25, and 20 mm, respectively. The tumors involved the tarsal (n = 3), bulbar (n = 2), and forniceal (n = 2) surfaces. All patients were treated with topical and injection IFNa2b, with complete regression achieved in 2 cases (at 1 months and 20 months) and partial regression in one case (at 9 months). All patients continue on chronic maintenance IFNa2b topically. There were no recurrences, and IFNa2b injection side effects of nausea and chills were minor, lasting 1 day. No patient required surgical removal of tumors from the socket and no patient required exenteration. Patients wearing ophthalmic prosthesis over a socket should be monitored for the development of OSSN. Combined topical and injection IFNa2b could represent a potentially effective therapy for this condition.
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