Polypoid melanoma: a rare clinical subtype frequently confused with benign entities

Abstract

Polypoid melanoma represents a distinct variant of melanoma characterized by an ulcerated exophytic nodule. Although this melanocytic tumor is usually restricted to the papillary dermis, it presents with a thick Breslow level and aggressive course. Its rapidly growing vertical phase and its amelanotic nature frequently simulate benign or non-aggressive entities; leading to a delay in biopsy and resulting in an increased risk of metastasis at the time of the diagnosis.

Keywords

• polypoid; melanoma; dermatopathology