Dermoscopy of uncommon skin tumours

There is mounting evidence that dermoscopy significantly improves the clinical diagnosis of most skin tumours and in consequence, dermoscopy is nowadays an integral part of the clinical skin examination. 1–3 The dermoscopic patterns of most common skin tumours, including melanocytic naevi, seborrhoeic keratoses, dermatofibromas, vascular tumours, melanomas, basal cell carcinomas (BCC) and squamous cell carcinomas (SCC) are well defined and established in everyday practice. 4–6 However, a range of uncommon skin tumours exists and their dermoscopic pat- terns have been described only sporadically. Here we provide a review of the literature on the dermoscopic pat- terns of uncommon skin tumours along with representative examples from our databas