Hypomelanotic Nail Melanoma in a Patient with Gorlin Syndrome

In Situ Melanoma Collision With a Basal Cell Carcinoma in a Patient With Basal Cell Nevus Syndrome: Clinical and Dermoscopic Features

“…Only 2 case reports have described the occurrence of melanoma in patients with BCNS, but neither reported the occurrence of collision lesions [1,2]. Here we present clinical, dermoscopic, and histological features of a collision tumor of BCC and in situ melanoma in a patient with multiple BCCs and BCNS.…”