BACKGROUND: Mesenteric thrombosis related to trauma is an uncommon entity and has poor prognosis when have low flow and hemorrhagic shock. It usually presents with a challenging diagnosis and high mortality rates, despite appropriate treatment. CASE REPORT: Patient with blunt trauma was admitted and initial treatment, complementary exams showed ribs and humerus fractures. Computerized tomography showed aerial distension in small bowels along with gastric stasis and hidropneumothorax. The patient had hypotension during clinical observation and cardiopulmonary arrest, responding to reanimation. Taken to surgery for damage control, it was found extensive necrosis of right colon, which was excised and performed primary anastomosis. He was admitted in the intensive care unit, evolving with oliguria, miosis, convulsion, and pulseless electric activity, dying three days after hospital admission. CONCLUSION: Although uncommon, mesenteric ischemia with venous thrombosis might be secondary to systemic hypotension, frequently followed by fatal outcomes.

INTRODUCTION: Mesenteric thrombosis related to trauma is an uncommon entity and has poor prognosis when associated to low perfusion and hemorrhagic shock. Usually presents a challenging diagnosis and high mortality rates, despite appropriate treatment. OBJECTIVE: To relate a case of a car accident and blunt abdominal trauma with terminal ileum and right colon necrosis. CASE REPORT: After initial procedures, complementary exams showed ribs and humerus fractures. Computerized tomography evidenced aerial distension in small bowel, gastric stasis and hidro-pneumothorax. Hypotension was observed during clinical observation followed by cardiopulmonary arrest, responding to reanimation. At surgery, it was found extensive necrosis of right colon and terminal ileum, and an ileum-transversostomy was performed with primary anastomosis. During the staying in intensive care unit, oliguria, miosis, convulsion and pulseless electric activity happened with death in three days after hospital admission. CONCLUSION: Although uncommon, mesenteric ischemia with venous thrombosis might be secondary to blunt abdominal trauma and must be considered in a bad abdominal evolution.