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Giant Hidroacanthoma Simplex Mimicking Bowen's Disease.
Shiro Niiyama1, Toshiaki Oharaseki2, Hideki Mukai1
1Department of Dermatology, Toho University Ohashi Medical Center, Tokyo, Japan.
Case Reports in Dermatology
|October 27, 2015
Summary
Hidroacanthoma simplex is a benign skin tumor that can clinically resemble other conditions. Immunohistochemical analysis confirmed this diagnosis, distinguishing it from suspected Bowen's disease.
Area of Science:
- Dermatology
- Oncology
- Pathology
Background:
- Hidroacanthoma simplex is a rare, benign skin neoplasm.
- It can present macroscopically similar to seborrheic keratosis or Bowen's disease.
- Histological examination may mimic clonal-type seborrheic keratosis.
Observation:
- A large plaque measuring 70 x 50 mm was observed on the right flank.
- The clinical presentation initially suggested Bowen's disease.
Findings:
- Immunohistochemical analysis was crucial for accurate diagnosis.
- The final diagnosis was confirmed as hidroacanthoma simplex.
Implications:
- Accurate diagnosis is essential to differentiate hidroacanthoma simplex from malignant conditions like Bowen's disease.
- Understanding the differential diagnosis aids in appropriate patient management.
- Further research into the specific immunohistochemical markers may improve diagnostic accuracy.
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