title: Focal Hepatic Hot Spot From Superior Vena Cava Occlusion Visualized on Ventilation/Perfusion Scintigraphy With Contrast-Enhanced CT Correlate.
abstract: A 57-year-old woman with superior vena cava stenosis from repeated central line placements underwent ventilation/perfusion scanning after presenting with pleuritic chest pain. The ventilation/perfusion scan was not characteristic for pulmonary embolus, but perfusion images demonstrated abnormal radiotracer activity within hepatic segment 4, along with extensive collateral vessels as seen on SPECT/CT. Two months later, the patient presented with similar complaints and had a chest CT with contrast to evaluate for pulmonary embolus. This showed occlusion of the superior vena cava and arterial enhancement within segment 4 in a similar distribution to the radiotracer in the perfusion scan.
authors.affiliation: From the Department of Radiology, Emory University Hospital, Atlanta, GA.
authors.forename: Michael
authors.initials: M
authors.lastname: Lawrence
authors.forename: David M
authors.initials: DM
authors.lastname: Schuster
mesh_terms: D005260:Female; D006801:Humans; D008875:Middle Aged; D055420:Perfusion Imaging; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed; D014683:Vena Cava, Superior / Q000000981:diagnostic imaging*