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Dermoscopy findings of hidroacanthoma simplex
Yota Sato1, Taku Fujimura1, Erika Tamabuchi1
1Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Case Reports in Dermatology
|July 3, 2014
Summary
Hidroacanthoma simplex (HAS), a rare skin tumor, is often misdiagnosed as seborrheic keratosis. Characteristic dermoscopy findings can aid in the early and accurate diagnosis of HAS, preventing potential malignant transformation.
Area of Science:
- Dermatology
- Oncology
- Pathology
Background:
- Hidroacanthoma simplex (HAS), or intraepidermal eccrine poroma, is a rare eccrine adnexal tumor.
- HAS is frequently misdiagnosed as benign skin tumors like clonal seborrheic keratosis.
- Misdiagnosis can lead to inappropriate cryosurgery, potentially triggering porocarcinoma development.
Observation:
- Clinical differentiation between HAS and clonal seborrheic keratosis is challenging.
- This report details characteristic dermoscopy findings specific to HAS.
- These findings may be linked to melanin-rich necrotic cells within the epidermis.
Findings:
- Dermoscopy reveals distinct features in HAS, differing from clonal seborrheic keratosis.
- The observed dermoscopic patterns are potentially associated with epidermal melanin-rich necrotic cells.
- These visual cues offer a method to distinguish HAS from similar-appearing lesions.
Implications:
- Accurate and early diagnosis of HAS is crucial for dermatologists.
- Dermoscopy can assist in distinguishing HAS from misdiagnosed conditions like seborrheic keratosis.
- Preventing misdiagnosis and unsuitable treatment can avert the progression to malignant tumors such as porocarcinoma.
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