The portal vein is formed by the confluence of the splenic vein (which drains the spleen) and superior mesenteric veins (which drain the small intestine). Portal vein thrombosis (PVT) is a thrombosis that develops in the trunk of the portal vein which can extend to its branches. It results from a combination of local and systemic prothrombotic factors. 1 Anticoagulation is generally considered in PVT patients as long as the risk of bleeding is low. Limited data have been published regarding the spontaneous resolution of PVT.We describe two cases of asymptomatic PVT who were not given anticoagulation in view of several factors, and on repeat scans, showed resolution of their thrombus. Case Report 1A 77-year-old male patient was admitted at Tan Tock Seng Hospital, Singapore for a 2-week history of progressive jaundice associated with tea-colored urine. He reported one episode of nonbloody and nonbilous vomiting. He also had chills for the past 2 days, before his admission. There was no fever, diarrhea, abdominal pain, pale stools, hematochezia or melena noted. He had a background history of hypertension and appendectomy.On admission, he was febrile with temperature of 37.9°C, blood pressure 120/80 mm Hg, heart rate 80/min. Examination revealed the presence of icteric sclerae. Abdomen was soft and nontender. Murphy sign was negative. The rest of the examination was unremarkable. The blood results are shown in ►Tables 1, 2, and 3.An abdominal computed tomography (CT) was done which showed hyperdensity in the distal most common bile duct suggestive of calculi; mild dilatation and wall enhancement of the biliary tree suggestive of cholangitis and wall-enhancing hypodense lesion in segment four of the liver likely abscess; and thrombosis of the segmental branches of the right portal vein (►Fig. 1). He was treated Keywords ► portal vein thrombosis ► PVT and cirrhosis ► PVT and intraabdominal abscess ► spontaneous resolution of PVT AbstractPortal vein thrombosis (PVT) is a thrombosis that develops in the trunk of the portal vein which can extend to its branches. It results from a combination of local and systemic prothrombotic factors. Anticoagulation is generally considered in PVT patients as long as the risk of bleeding is low. Limited data have been published regarding spontaneous resolution of PVT. We describe two cases of asymptomatic PVT who were not given anticoagulation in view of several factors, who, on repeat scans, showed resolution of their thrombus.

Behçet disease is a systemic vasculitis characterized by recurrent oral and genital ulcers and uveitis. We describe a rare case of a 43-year-old woman with Behçet disease who was admitted for pyrexia of unknown origin, cough, dyspnea, and chest pain. Her computerized tomography scan revealed pulmonary embolism and right ventricular thrombus. She was treated with anticoagulation for pulmonary embolism and right ventricular thrombus. She was well during her last follow-up.