Relationship between dermoscopic and histopathological findings of extradigital glomus tumors

Abstract

Key Clinical MassageIn extradigital glomus tumors, (1) noncontact and (2) contact dermoscopy show (1) a central purplish‐white area corresponding to tumor nests surrounding enlarged vessels, a peripheral yellow‐white area corresponding to mucin deposition, melanin granules, and fibrous tissue, and (2) white reticular and linear cord areas corresponding to pseudocapsules and collagen fibers.