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Poroid Hidradenoma: A Two-Case Report and Literature Review
Joon Soo Lim1, Eun Sun Kwon1, Ki Bum Myung1
1Department of Dermatology, Konyang University College of Medicine, Daejeon, Korea.
Annals of Dermatology
|June 3, 2021
Summary
Poroid hidradenoma (PH) is a rare benign eccrine sweat gland tumor. This report details two uncommon cases of PH, one on the face and another on the heel, with histological findings.
Area of Science:
- Dermatology
- Oncology
- Histopathology
Background:
- Poroid hidradenoma (PH) is an infrequent benign neoplasm originating from eccrine sweat gland differentiation.
- Typically presenting as a small intradermal nodule in adults, PH commonly affects the head, neck, trunk, and extremities.
Observation:
- This study documents two rare instances of PH: a facial nodule in a 50-year-old male and a heel nodule in a 67-year-old female.
- Both lesions presented as solitary, distinct nodules, with one being tender.
Findings:
- Histopathological examination revealed well-defined tumors with central cystic spaces and solid areas.
- Tumor cells comprised monomorphic poroid cells and larger cuticular cells, consistent with PH.
Implications:
- The report highlights the unusual locations of PH (face and heel) and contributes to the limited case data available.
- Understanding the diverse presentations and histological characteristics of PH is crucial for accurate diagnosis and management of this rare tumor.
