title: Scintigraphic features of superior vena cava obstruction due to substernal non-toxic goitre.
abstract: Four men with clinical features of superior vena caval syndrome due to large substernal non-toxic multinodular goitre have undergone radionuclide superior vena caval studies. In all cases the dynamic scintigraphs showed a characteristic thyroidal configuration attributed to the definition of stretched thyroidal veins and their tributaries. Radiocontrast studies of two patients demonstrated the characteristic thyroid configuration. A radionuclide superior venacavogram taken post-thyroid lobectomy in one case showed the features had reverted to normal.
mesh_terms: D000328:Adult; D000368:Aged; D003251:Constriction, Pathologic; D006045:Goiter, Substernal / Q000150:complications*; D006801:Humans; D007457:Iodine Radioisotopes; D008297:Male; D011877:Radionuclide Imaging; D012709:Serum Albumin; D013670:Sodium Pertechnetate Tc 99m; D013667:Technetium; D013668:Technetium Tc 99m Aggregated Albumin; D014652:Vascular Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D014683:Vena Cava, Superior / Q000000981:diagnostic imaging*
chemical_list: D007457:Iodine Radioisotopes; D012709:Serum Albumin; D013668:Technetium Tc 99m Aggregated Albumin; D013667:Technetium; D013670:Sodium Pertechnetate Tc 99m