Superior mesenteric venous thrombosis in a 47 years old male with protein S deficiency: A case report.

Introduction: Mesenteric venous thrombosis is due to blood clot in veins that drain blood from the intestine. It may lead to mesenteric ischemia. Protein S deficiency is one of the causes of superior mesenteric vein thrombosis. Case presentation: A 47 years old male patient presented with pain in the abdomen. Contrast CECT shows filling defect in the superior mesenteric venous thrombosis. Coagulometer showed lower protein S activity than that of normal. Clinical discussion: Proper diagnosis is needed for early detection so that proper intervention can be made on time. Anticoagulation and vitamin K antagonists are given. Conclusions: Though rare, protein S deficiency should be considered a possible cause of mesenteric venous thrombosis.