Parallel ridge pattern on dermoscopy: observation in non-melanoma cases.
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.
Rio de Janeiro(RJ), Brazil.
Tainá Scalfoni
TS
Fracaroli
Fernanda Guedes
FG
Lavorato
Juan Piñeiro
JP
Maceira
Carlos
C
Barcaui
D046169:Dermoscopy; D003937:Diagnosis, Differential; D005533:Foot Dermatoses / Q000473:pathology*; D006801:Humans; D008545:Melanoma / Q000473:pathology*; D009508:Nevus, Pigmented / Q000473:pathology*; D012871:Skin Diseases / Q000473:pathology*