[Leiomyosarcoma of the stomach simulating a retroperitoneal tumor].
D006801:Humans; D007890:Leiomyosarcoma / Q000175:diagnosis*; D009369:Neoplasms; D012186:Retroperitoneal Neoplasms; D012187:Retroperitoneal Space; D013274:Stomach Neoplasms / Q000175:diagnosis*
LEIOMYOSARCOMA/diagnosis; RETROPERITONEAL SPACE/neoplasms; STOMACH NEOPLASMS/diagnosis