Sebaceous lymphadenocarcinoma of parotid gland.

The sebaceous lymphadenocarcinoma of the salivary glands is extremely rare and represents carcinomatous transformation of sebaceous lymphadenoma. There are only four reported patients in the medical literature. A patient who presented with a recent increase of a left infraauricular mass, of more than 10 years duration, underwent surgery. The microscopic examination revealed a typical sebaceous lymphadenoma with transition to a sebaceous adenocarcinoma. After postoperative adjuvant radiotherapy, the patient remains disease-free at 24 months postoperatively. We here report a fifth case of this tumor and the youngest age at diagnosis among reported cases.