A case report of epithelioid inflammatory myofibroblastic sarcoma with RANBP2-ALK fusion gene treated with the ALK inhibitor, crizotinib..     ///     Epithelioid inflammatory myofibroblastic sarcoma is a variant of inflammatory myofibroblastic tumor with aggressive clinical course associated with RANBP2-ALK fusion.     ///    "The feature of the neoplasms, including epithelioid morphology, anaplastic lymphoma kinase staining on the nuclear membrane, and results from the reverse transcriptase-polymerase chain reaction, led to diagnosis of epithelioid inflammatory myofibroblastic sarcoma with RANBP2-ALK fusion. "