The adnexal tumours are a very heterogeneous group of lesions, more and more studied in the literature. The squamoid eccrine ductal carcinoma (SEDC) is a rare malignant variant that combines ductal structures with squamous differentiation. We report a case of dermoscopic and histological diagnosis of SEDC, treated with Mohs Surgery and with no recurrence of a tumour after 12 months of follow up.
Keywords: Adnexal tumour; Eccrine adenocarcinoma; Mohs surgery; Squamoid eccrine ductal carcinoma; Videodermoscopy.