title: Systemic to pulmonary venous shunting in superior vena cava obstruction. Unusual myocardial and thyroid visualization.
abstract: Obstruction of the superior vena cava is commonly associated with the development of several collateral venous pathways. Right-to-left systemic to pulmonary venous shunting, however, rarely has been reported. This paper describes a case in which a previously unsuspected shunt, manifested by the striking visualization of myocardial and thyroid tissue in addition to other findings, was discovered on a routine lung perfusion scan. Imaging, as well as radiologic studies are presented in the investigation of this phenomenon.
authors.affiliation: Department of Nuclear Medicine and Radiology, Montefiore Medical Center, Bronx, New York 10467.
authors.forename: B
authors.initials: B
authors.lastname: Gale
authors.forename: C
authors.initials: C
authors.lastname: Chen
authors.forename: K J
authors.initials: KJ
authors.lastname: Chun
authors.forename: J
authors.initials: J
authors.lastname: Lan
authors.forename: J
authors.initials: J
authors.lastname: Cynamon
authors.forename: L M
authors.initials: LM
authors.lastname: Freeman
mesh_terms: D000328:Adult; D003097:Collateral Circulation; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D011667:Pulmonary Veins / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D013479:Superior Vena Cava Syndrome / Q000000981:diagnostic imaging* / Q000473:pathology; D013961:Thyroid Gland / Q000000981:diagnostic imaging*; D014692:Ventilation-Perfusion Ratio