Deep penetrating nevus: A distinct variant of melanocytic nevus

Deep penetrating nevus: A distinct variant of melanocytic nevus

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Deep penetrating nevus (DPN) is a variant of melanocytic nevus which goes unrecognized due to its relative rarity and may be misinterpreted as Accessories malignant melanoma.It commonly presents in young adults as a dark pigmented lesion on the face, neck, or shoulder.A 60-year-old lady presented with a mole over the left arm of 8 years duration.A biopsy of Beauty the lesion was performed under the clinical impression of a compound nevus with suspicion of malignancy.

Based on the histologic features, a diagnosis of DPN was put forward.