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Different dermoscopic faces of dermatofibromas
Isil Kilinc Karaarslan1, Gulsum Gencoglan, Taner Akalin
1Ege University, Medical Faculty, Department of Dermatology, 35100, Bornova, Izmir, Turkey. kilinci35@yahoo.com
Journal of the American Academy of Dermatology
|June 15, 2007
Summary
Dermatofibromas exhibit diverse dermoscopic patterns beyond the typical appearance. This study highlights less common features like linear crypts and blue-gray pigmentation, aiding in diagnosis.
Area of Science:
- Dermatology
- Dermoscopy
- Oncology
Background:
- Dermatofibromas typically present with a central white scar-like patch and peripheral pigment network on dermoscopy.
- Variations in dermoscopic presentation can occur.
Purpose of the Study:
- To analyze the diverse dermoscopic appearances of dermatofibromas.
- To identify and characterize non-classic dermoscopic patterns.
Main Methods:
- Evaluation of 52 dermatofibromas with non-classic dermoscopic features.
- Data collected between May 2003 and July 2005.
Main Results:
- Observed patterns included globules in the scar-like area (38.5%), linear/irregular crypts (26.9%), lentigo-like reticular pigmentation (23%), homogeneous blue-gray pigmentation (5.9%), and surrounding erythema (3.8%).
- An atrophic variant was noted in one lesion (1.9%).
Conclusions:
- Dermatofibromas demonstrate varied dermoscopic features.
- "Linear, irregular crypts" are a notable, non-unusual finding.
- Homogeneous bluish pigmentation may suggest hemosiderotic dermatofibromas.
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