Flat-pigmented facial lesions without highly specific melanocytic dermoscopy features: the role of dermoscopic globules and dots in differential diagnosis with corresponding reflectance confocal microscopy substrates

Dermoscopy is the first and often only level of non-invasive diagnostic investigation for cutaneous disease. However, differential diagnosis of lentigo maligna (LM) is difficult with dermoscopy because of shared dermoscopic features with flat-pigmented non-melanocytic skin neoplasms (NMSN).1-3 Previous authors have identified some dermoscopic features as suggestive for melanocytic lesions and highly suggestive for LM; grey rhomboidal structures, non-evident follicles, grey circles and intense pigmentation.