Nevoid Melanoma: Dermoscopic and in Vivo Reflectance Confocal Microscopic Aspects in 4 Cases

Nevoid melanoma (NeM) is deemed to be one of the most difficult melanomas to diagnose as it mimics a benign nevus clinically and histologically.1 There is no evidence to suppose at this time that it represents any more than a morphologic subtype without any special prognostic significance.2 Nevertheless, as NeM can be confused clinically and even pathologically for a nevus, there may be a delay in diagnosis, which can lead to a worse prognosis.3,4 In vivo reflectance confocal microscopy (RCM) is a noninvasive, high-resolution skin-imaging device, which has become an important tool in the diagnosis of malignant melanoma (MM),5 but it has some pitfalls.