Retroperitoneal gastrointestinal tumor is the rarest subtype among 3 subtypes of extragastrointestinal tumors, which are uncommon stromal tumors. We herein report a case of a 55-year-old man with retroperitoneal gastrointestinal tumor detected by magnetic resonance imaging and confirmed by postoperative histology and immunohistochemistry.
Keywords: Extragastrointestinal stromal tumors; Histology; Immunohistochemistry; Magnetic resonance imaging; Retroperitoneum.
© 2020 The Authors. Published by Elsevier Inc. on behalf of University of Washington.