title: Anomalous inferior vena cava with idiopathic thrombosis simulating a mass.
abstract: The author presents a case of a mass seen on computed tomography. Initial appearance suggested a tumor but, because of the overlap of the vascular anatomy, the benign nature of the anomalous vessel could not be assured. Surgical intervention was, therefore, necessary.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging*; D013927:Thrombosis / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014682:Vena Cava, Inferior / Q000002:abnormalities* / Q000000981:diagnostic imaging