The article by Saida et al1 on the significance of dermoscopic patterns in detecting malignant melanoma is of great importance to us. Based on the results of this large multicenter study conducted in Japan, the authors reported that 2 dermoscopic patterns, the parallel ridge pattern and irregular diffuse pigmentation pattern, were highly specific for the diagnosis of acral melanoma.
Braun RP, Gaide O, Skaria AM, Kopf AW, Saurat J, Marghoob AA. Exclusively Benign Dermoscopic Pattern in a Patient With Acral Melanoma. Arch Dermatol. 2007;143(9):1209-1226. doi:10.1001/archderm.143.9.1213-b