In situ and very thin melanomas (< 0.75 mm) are similarly and commonly recognizable.

Aims And Background: Recent data have suggested that cutaneous melanoma in situ can be clinically recognized in most cases by its features, which resemble those of early invasive melanoma. The aim of the study was to verify whether the diagnostic sensitivity of melanoma in situ is actually equivalent to that of early invasive melanoma.

Methods: We retrospectively reviewed the clinical diagnosis of 274 consecutive cutaneous melanoma < 0.