Introduction: Malignant lymphomas are defined as malignant proliferations developed from constituents of lymphoid organs, but also from lymphoid formations contained in most organs (liver, kidneys, digestive) without blood contamination. Lymphoma is a set of monoclonal tumor proliferations developed at the expense of lymphocytes. Lymphoma is the most common malignant tumor of the spleen, but primary lymphoma of the spleen remain an exceptional presentation. We report the case of a stercoral perforation of the colon that occurred in a 67-year-old patient whose diagnosis was made on ct and we try to recall the clinical and CT characteristics of primary aneurismal spleen lymphoma. Case Report: We expose the case of a 66-year-old patient, with a history of chronic smoking, consulted in the emergency department for a sub occlusive syndrome evolving for less than 24hours. An abdominal CT was conducted: The diagnosis of stercoral colonic perforation was retained. Due to a development of hypovolemic shock, the decision was to do a laparotomy with peritoneal lavage with colonic resection followed by an ostomy of the proximal segment and drainage of the abdominal cavity. The evolution was characterized by the discharge of the patient 7 days after. Conclusion: Stercoral perforation of the colon is a rare complication of abdominal trauma. The diagnosis, often difficult and delayed, must be known by all physicians caring working in trauma centers. Stercoral perforation of the colon is a surgical emergency, the prognosis of which, often poor, depends on the terrain and the speed of treatment.