SMARCB1 and melanoma: Of particular interest and rather new among these NEN mimickers are tumors from the Ewing Sarcomas group, desmoplastic small round cell tumors, epithelioid neoplasms with FUS-CREM gene fusions, epithelioid sarcomas, synovial sarcomas, SMARCA4- and SMARCB1-deficient neoplasms (Fig. 6), clear cell sarcomas of the gastrointestinal tract, alveolar soft part sarcomas, solitary fibrous tumors, chordomas, melanomas, and sclerosing epithelioid mesenchymal neoplasms.