Sclerosing epithelioid fibrosarcoma presenting as intraabdominal sarcomatosis with a novel EWSR1-CREB3L1 gene fusion..     ///     We report a case of intraabdominal sclerosing epithelioid fibrosarcoma (SEF) with a t (11;22)(p11.2;q12.2) Ewing sarcoma breakpoint region 1-cAMP-responsive element-binding protein 3-like 1 translocation.     ///    "This is the first report of ""pure"" or true SEF presenting as intraabdominal sarcomatosis with confirmation of the recently described unique Ewing sarcoma breakpoint region 1-cAMP-responsive element-binding protein 3-like 1 gene fusion in SEF without areas of low-grade fibromyxoid sarcoma. "