Survival study and clinicopathological evaluation of trichilemmal carcinoma.

Trichilemmal carcinoma (TC) is a rare malignancy, commonly located on the scalp, forehead and neck, trunk or the upper extremities. The aim of this study was to investigate the clinicopathological characteristics and prognostic factors of TC, and to determine an optimal treatment strategy for these patients. Consecutive patients who were admitted to the Sun Yat-sen University Cancer Center between 1998 and 2012 were included in this retrospective study. The key prognostic factors affecting survival were lymph node metastasis and surgery margin. Multivariate analysis demonstrated that there was no risk factor for patient survival. Surgery margin and lymph node metastasis were the prognostic factors that influenced the treatment outcome. Simple excision with 1 cm margins is safe, cost-effective and effective for the treatment of TC. Additionally, postoperative follow-up of the patient in order to facilitate early diagnosis of recurrence and distant metastasis is necessary. Systemic chemotherapy should be considered in the case of patients with distant metastases.