Trichilemmal carcinoma--a rare tumor: case report.

Trichilemmal carcinoma is a rare cutaneous cancer that usually occurs on photoexposed areas in elderly individuals. Most of the time, there is a unique lesion that presents a papulonodular aspect with possible keratosis or ulceration on the top of it. We report on a case of this rare tumor, discussing various aspects of this entity and possible therapy. Simple excision with adequate safety margin is a safe, low-cost and effective mode of treatment for this type of carcinoma. Although a rare form of neoplasia, trichilemmal carcinoma has good prognosis when treated correctly.