Description: Dermoscopy -Parallel ridge pattern with reddish-black colouration of subcorneal haematoma.Also shows'reddish satellites' and eccrine pores of acral skin.

History:

Construction worker presented for routine skin examination.

According to Japanese authors[ Tanaka M,Kimoto M & Saida T ]  : up to 10% of acral nevi could show non-typical pattern.Lattice-like pattern is also observed especially on the arch areas as a variant of parallel furrow pattern which might be due to some differences in the skin markings at the arch area.