Open AccessPoroid Hidradenoma: A Two-Case Report and Literature Review
Author(s) -
Joon Soo Lim,
Eun Sun Kwon,
Ki Bum Myung,
Seung Hyun Cheong
Publication year - 2021
Publication title -
annals of dermatology/annals of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.385
H-Index - 37
eISSN - 2005-3894
pISSN - 1013-9087
DOI - 10.5021/ad.2021.33.3.289
Subject(s) - medicine , hidradenoma , dermatology
Poroid hidradenoma (PH) is a rare benign tumor that shows differentiation of the eccrine sweat gland. It occurs mainly in adults, presenting as a 0.5 to 2 cm-sized intradermal nodule, mostly on the head, extremities, trunk and neck. We report two rare cases of PH, one on the face and the other on the heel. The first patient was a 50-year-old male who had a solitary, skin-colored nodule on his right temple for 6 months. The second patient was a 67-year-old female who presented with a solitary, bean-sized, tender nodule on her left heel for 1 year. The common histological examination finding was a well-circumscribed tumor composed of solid portions and large cystic spaces in the center. The tumor cells consisted of small, monomorphic poroid cells and large cuticular cells in both cases. To our knowledge, only few cases of PH have been reported. Herein, we report two rare cases of PHs with literature review.