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Updated: May 7, 2026
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Published on: August 18, 2022
Parallel ridge pattern on dermoscopy: observation in non-melanoma cases
Tainá Scalfoni Fracaroli1, Fernanda Guedes Lavorato, Juan Piñeiro Maceira
1Rio de Janeiro(RJ), Brazil.
Abstract:
The acral melanoma is the most prevalent type of melanoma in the non-Caucasian population, and dermoscopy is a useful tool for earlier diagnosis and differentiation from benign lesions. The dermoscopic pattern often associated with melanoma on the volar skin is the parallel ridge, with 99% specificity according to the literature. However, this pattern can also occur in several benign acral lesions, so it is important to make a good interpretation of this pattern, along with the clinical history and evolution.
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