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The dermatoscopic pattern of clear-cell acanthoma resembles psoriasis vulgaris
1Department of Dermatology, University of Tübingen, Germany. a.blum@derma.de
Background:
Dermatoscopy (dermoscopy, epiluminescence microscopy) is used for the early detection of malignant tumors and avoidance of unnecessary excisions of benign skin tumors.
Objective:
Description of the dermatoscopic pattern of clear-cell acanthoma.
Methods:
Video dermatoscopy at 20-fold magnification of a clear-cell acanthoma and psoriasis vulgaris.
Results:
Homogeneous, symmetrically or bunch-like arranged, pinpoint-like capillaries were seen in the clear-cell acanthoma and in psoriasis vulgaris.
Conclusion:
The dermatoscopic psoriasis-like pattern of clear-cell acanthoma is a diagnostic clue which may help the clinician to identify this benign epidermal tumor and to differentiate it from other benign and malignant tumors of the skin.