The term Ocular Surface Squamous Neoplasia (OSSN) encompasses a rare spectrum of diseases of the conjunctiva or the cornea which ranges from squamous papilloma to mild dysplasia to carcinoma in situ to invasive squamous cell carcinoma. It is mainly a diagnosis of clinical suspicion. We here present a case of OSSN in a young female who presented to us with a six months history or mass in her left eye with irritation and redness and who was put on topical interferons based on clinical suspicion to which she showed little response. She was then taken up for excisional biopsy, the histopathology reports of which confirmed the diagnosis of OSSN.    

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Dr Kusum Bhanoo

Bhanoo Hospital, Near College Gate, Dhalpur, Kullu