Sebaceous carcinoma in Western Australia: A registry-based study of site-related outcomes.

Sebaceous carcinoma is a rare cutaneous malignancy which is typically regarded as relatively aggressive and has traditionally been subdivided into periorbital or extraorbital tumours. We conducted a retrospective review of all cases of sebaceous carcinoma reported to the Western Australian Cancer Registry between 1987 and May 2019. The incidence of sebaceous carcinoma in Western Australia has increased over the last three decades, with extraorbital tumours being much more common than periorbital tumours. Very few sebaceous carcinomas have led directly to the death of patients; however, adverse outcomes were more likely with periorbital tumours, in particular local recurrence and the need for major surgical intervention.