Research Letter A 48-year-old-man presented to the emergency room with abdominal pain and vomiting of 12-hour duration. He had a history of porto-splenic venous thrombosis ten years before admission that was treated with 6 months of oral anticoagulation and felt to be due to moderate protein C deficiency, which was not confirmed in subsequent laboratory tests. Vital signs were normal, he was afebrile and no remarkable findings were found on physical examination except for pain on palpation in the left […]