Recurrent clear cell hidradenoma of the foot

BACKGROUND. Clear cell hidradenoma is an uncommon neoplasm without established optimal treatment. OBJECTIVE. Using Mohs micrographic surgery, a recurrent clear cell hidradenoma of the right foot was treated. METHODS. Case report and literature review. RESULTS. Two stages of Mohs micrographic surgery and subsequent repair successfully treated the recurrent clear cell hidradenoma. No recurrence of the neoplasm has been observed at 11 months follow-up. CONCLUSION. Optimal treatment of clear cell hidradenoma is unestablished. Adequate primary local excision is essential. Mohs micrographic surgery should be considered for treatment, especially on recurrent tumors in critical locations.