Solar lentigo, seborrheic keratosis and lichen planus-like keratosis

Abstract

Solar lentigo, seborrheic keratosis and lichen planus-like keratosis represent a spectrum of benign skin neoplasms with common clinical, dermoscopic and histopathologic findings [1]. Despite their variable clinical and dermoscopic appearances, the diagnosis can often be done on clinical grounds alone. The differentiation from malignant skin neoplasms, however, can be difficult in irritated, regressive or highly pigmented lesions. RCM may enable a non-invasive diagnosis in clinically and dermoscopically equivocal cases by visualizing key RCM features, which usually correlate well with histopathologic findings [2].