A Case of Extensive Splanchnic Vein Thrombosis in a COVID-19 Patient and a Review of the Literature

Splanchnic vein thrombosis is one of the rare complications of coronavirus disease 2019 (COVID-19). A 43-year-old woman presented with splanchnic vein thrombosis as a rare extrapulmonary complication of COVID-19. She was previously healthy without a medical history of coagulopathy before hospital admission. She complained of epigastric pain, along with nausea and vomiting. Enhanced abdominopelvic computed tomography (CT) scan demonstrated extensive acute thrombosis in the portal, superior mesenteric, and splenic veins with total occlusion.Intestinal ischemia or infarction was not clinically observed. All thrombophilia screening tests yielded negative results. Under anticoagulation therapy, she recovered dramatically and was discharged from the hospital. Imaging findings can be used to confirm splanchnic vein thrombosis when a COVID-19 patient has abdominal symptoms.