A 54-year-old woman comes to the ED because of severe abdominal pain for the past 2 hours. She has a history of polycythemia vera. Physical examination shows mild scleral icterus. Abdominal examination shows a fluid wave with a moderately enlarged liver and spleen. Which of the following is the most likely diagnosis?
Budd-Chiari syndrome
Gallstone ileus
Portal vein thrombosis
Splenic vein thrombosis
Subcapsular hepatic hematoma
