The authors report a complicated leiomyosarcoma gastric case with hemoperitoneum. The exploratory laparotomy reveals an hemoperitoneum constituted from both gastric tumors. One was localised in the antrum and was encapsulated, the other in the cardia and had an encephaloid and necrotized core. The pathological examination of the total gastrectomy piece is consistent with a double gastric localisation of a leiomyosarcomosis. 5 years after the initial operation, the patient developed hepatic metastases. A review of literature allows the authors to make the point of this disease.