Clinical Characteristics of Basal Cell Carcinomas of the Vulva: An Institutional Retrospective Review

BACKGROUND There are limited data on the etiology, clinical characteristics, and optimal treatment of vulvar basal cell carcinoma (BCC). OBJECTIVE This retrospective review may aid in treatment decisions for vulvar BCC. MATERIALS AND METHODS A retrospective review of our institutional CoPath database was performed, using search terms to identify cases of vulvar BCCs from 2000 to 2018. RESULTS A total of 35 cases of vulvar BCC were included. Patient age ranged from 33 to 97 years with a mean age of 70 years. Of the 35 cases, 28 (80%) involved the cutaneous vulva, 6 (17%) involved the suprapubic area, and 1 (3%) involved the clitoris. Most vulvar BCCs were treated by wide local excision (46%) and vulvectomies (37%), with 3 cases treated with Mohs (11%) and 2 with electrodesiccation and curettage (6%). Preoperative tumor sizes were 0.86 cm2 for Mohs, 0.94 cm2 for excision, and 1.54 cm2 for vulvectomy. The mean margins were 3 mm for Mohs, 4.4 mm for wide local excision, and 6 mm for vulvectomy. Most cases (77%) were identified and treated by gynecology. CONCLUSION Mohs micrographic surgery should be considered for the advantages of being tissue sparing, evaluating the complete peripheral and deep margin, and avoiding the costs and risks of general anesthesia.