Excision and delayed reconstruction with paraffin section histopathological analysis for periocular sebaceous carcinoma.

ABSTRACT

PURPOSE: To evaluate the use of excision and delayed reconstruction with rapid paraffin section analysis in patients with sebaceous carcinoma (SC) of the periocular region. METHODS: A retrospective study of patients with SC. Patients were identified from a contemporaneously maintained database and medical notes reviewed. Data were collected on known risk factors. Standard management started with conjunctival mapping biopsies. The tumor was excised with a 3-mm clinical margin and sent in formalin for histopathological analysis. The patient went home with dressings and returned 3 days later. Further excision or reconstruction was performed as indicated. Follow-up data were collected. RESULTS: Seventeen patients had excision and delayed reconstruction with paraffin section control. Ten had clear margins after 1 excision, and 7 were clear after 2 excisions. Reconstructive technique varied according to the defect. Three patients developed further tumor. One of these had a local recurrence treated with further excision and reconstruction. One developed a multicentric tumor with regional metastasis, and the third patient developed distant metastasis. Two patients died from SC. Average follow up was 5 years (2-9 years). CONCLUSIONS: Excision and delayed reconstruction using paraffin section histopathological analysis are in widespread use for the management of basal cell carcinomas in the periocular region. While some authors advocate the use of Mohs' micrographic surgery in patients with SC, this technique has been questioned due to the possible misinterpretation of subtle intraepithelial pagetoid spread with frozen section analysis. To preserve the function of the eyelid and ease of reconstruction, it is important to try and preserve as much healthy tissue as possible while effecting a successful excision. Excision and delayed reconstruction offer an excellent option for the management of this rare and highly malignant tumor.