Nodular hidradenoma. A report of three cases and review of the literature.

BACKGROUND

Nodular hidradenoma is a rare adnexal tumor most likely arising from the eccrine gland.

OBJECTIVE

We describe three cases of a nodular hidradenoma presenting as an expanding nodule on the forehead (case 1), left lower extremity (case 2), and left neck (case 3). We discuss the clinical and histologic features of this tumor and present a review of the literature.

CONCLUSIONS

This report highlights the salient histologic findings that distinguish nodular hidradenomas from other adnexal tumors and emphasizes the benefit of complete local excision to prevent recurrence of these tumors.