A Rare Case of Benign Tumor Deriving from the Eccrine Glands of the Forearm

Abstract

Background: Cutaneous adnexal tumors are a rare cluster of neoplasms deriving from the adnexal epithelial parts of the skin, including the eccrine sweat gland epithelium. They are uncommon and heterogeneous histological entities. Generally, they present as solid or cystic lesions that seldom undergo malignant transformation. Due to their rarity in routine clinical practice, they often pose a diagnostic dilemma. Management usually involves appropriate wide local resection margins of the primary tumor. Recurrence after incomplete excision is well-known, as observed in our case. Case presentation: A patient presented here with a recurrent cutaneous adnexal tumor on the dorsum of the forearm, histopathologically proven to be a syringoepithelioma (eccrine acrospiroma), which was planned to be managed by repeat surgical excision with adequate volume. Conclusion: Eccrine acrospiroma is a solitary benign cutaneous tumor arising from the eccrine sweat gland epithelium. Only pathological analysis will lead to the diagnosis. The surgical management approach of adequate excision is the only effective treatment to prevent recurrence and malignant transformation.