Nine percent of biopsy proven lentigo maligna are reclassified as lentigo maligna melanoma after surgery

Abstract

Lentigo maligna (LM) is a melanoma in situ and the incidence is still rising in The Netherlands. LM is mostly located in the face, therefore radical surgical removal, which is the first choice of treatment, can be challenging in this delicate anatomical region. Staged excision is considered a useful alternative. The initial diagnosis of clinically suspicious LM is usually based on just one or a few biopsies, which may lead to reclassification into lentigo maligna melanoma (LMM) based on histological evaluation of the excision specimen.

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