Primary sebaceous carcinoma of lacrimal gland: a previously unreported primary neoplasm

We describe a patient who presented with a rapidly growing neoplasm of the lacrimal gland which histologically was a sebaceous gland carcinoma. The eyelid was entirely normal on examination under anaesthesia. Sebaceous differentiation has been described on only three previous occasions, arising within pre-existing tumours of the lacrimal gland such as pleomorphic adenoma. In this case there is a single tumour cell line within normal lacrimal gland, and the eyelid is normal. This points to a previously unreported diagnosis of primary sebaceous carcinoma of the lacrimal gland.