Related Experiment Video
Updated: Jul 10, 2026
10:10
Robotic Duodenum-preserving Total Pancreatic Head Resection for Intraductal Papillary Mucinous Neoplasms
Published on: April 17, 2026
Poroid hidradenoma: a case report
Sergio Delfino1, Vito Toto, Beniamino Brunetti
1Department of Plastic and Reconstructive Surgery, Faculty of Medicine, University Campus Bio-Medico of Rome, Via Alvaro del Portillo, 21, 00128 Rome, Italy. s.delfino@unicampus.it
In Vivo (Athens, Greece)
|November 21, 2007
Summary
Poroid hidradenoma, a rare skin neoplasm, presents diagnostic challenges due to its resemblance to malignant tumors. This case highlights a thigh lesion, emphasizing the need for careful histological evaluation of poroid hidradenoma.
Area of Science:
- Dermatopathology
- Oncology
- Histopathology
Background:
- Poroid hidradenoma is a rare variant of eccrine poroma, classified under poroid neoplasms.
- It exhibits hidradenoma-like architectural features and poroid neoplasm-like cytological features.
- Malignant transformation is rare (<1%), but histological mimicry can lead to misdiagnosis.
Observation:
- A case of poroid hidradenoma is presented in a 35-year-old male.
- The lesion was a soft-tissue mass located on the right thigh.
- This location is consistent with the reported tendency for poroid hidradenomas to occur in the extremities (20% of cases).
Findings:
- The tumor displayed both solid and cystic areas with neoplastic cells confined to the dermis.
- Distinctive poroid and cuticular cells were observed, characteristic of poroid neoplasms.
- The histological features, while typical, can be confused with malignant neoplasms.
Implications:
- Accurate histological differentiation is crucial to avoid misdiagnosis of poroid hidradenoma.
- Increased awareness of this rare entity and its potential mimicry is important for clinicians and pathologists.
- Further case reports may help refine diagnostic criteria and understanding of poroid hidradenoma behavior.