“…Kidney cancer, multiple myeloma, and nonHodgkin's lymphoma are also relatively frequent, each being responsible for about 5% to 10% of cases [4,6,7]. In children, SCC is commonly seen in sarcomas, neuroblastoma, germ cell tumors, and Hodgkin's lymphoma [8]. Although most cases of SCC occur in patients with a previous diagnosis of cancer, the presence of a primary cancer is not known at the time of presentation in up to 10% to 20% of patients [1,4].…”