Melanomas that failed dermoscopic detection: a combined clinicodermoscopic approach for not missing melanoma.

Objective: The objective was to describe the clinical and dermoscopic characteristics of difficult-to-diagnose melanomas (DDM).

Design: This study was a retrospective analysis of clinical data and dermoscopic images in a series of excised melanomas.

Setting: Cases were obtained from the database registers of three public hospitals in Barcelona (Spain), Naples (Italy), and Graz (Austria).