Besides pediatric ATRT, PDC and bona fide PES described above, it is well known that SMARCB1/INI1-deficiency occurs in a variety of tumors, including malignant rhabdoid tumor (MRT), epithelioid sarcoma (ES), malignant peripheral nerve sheath tumor (MPNST), extraskeletal myxoid chondrosarcoma (EMCS). The gene discussed is SMARCB1; the disease is extraskeletal myxoid chondrosarcoma.