technetium-tc-99m-sulfur-colloid and Graft-Occlusion--Vascular

Topics: Adult; Diabetes Mellitus, Type 1; Female; Graft Occlusion, Vascular; Humans; Pancreas Transplantation; Radionuclide Imaging; Spleen; Technetium Tc 99m Sulfur Colloid

Radionuclide venography (RNV) and CT with contrast infusion were performed in a patient with superior vena cava (SVC) syndrome and upper extremity swelling due to SVC and bilateral subclavian vein thrombosis resulting from infection of a Le Veen peritoneovenous shunt. Although CT was suggestive of thrombosis and excluded extrinsic compression by a mass, obstruction of the SVC and deliniation of collateral venous channels were best demonstrated by RNV.

Topics: Graft Occlusion, Vascular; Humans; Male; Middle Aged; Peritoneovenous Shunt; Radionuclide Angiography; Subclavian Vein; Superior Vena Cava Syndrome; Technetium Tc 99m Aggregated Albumin; Technetium Tc 99m Sulfur Colloid; Thrombosis; Tomography, X-Ray Computed

A case report is presented in which malfunction of a peritoneovenous shunt was caused by subintimal dissection of the venous end of the shunt tubing. The radionuclide shunt patency study demonstrated a collection of radioactivity at the venous end of the tubing, representing the abnormal intramural collection of peritoneal fluid. Scintigraphic demonstration of this complication of a peritoneovenous shunt has not been reported previously.

Topics: Ascites; Graft Occlusion, Vascular; Humans; Male; Middle Aged; Peritoneovenous Shunt; Radionuclide Imaging; Technetium Tc 99m Sulfur Colloid; Vascular Surgical Procedures

Previous reports have indicated an accuracy of nearly 100% for LeVeen shunt studies. A case is presented that fulfills the criteria for proper function, but the LeVeen shunt tube was poorly functioning with its tip partially extravascular.

Topics: False Negative Reactions; Graft Occlusion, Vascular; Humans; Male; Middle Aged; Peritoneovenous Shunt; Radionuclide Imaging; Technetium Tc 99m Sulfur Colloid; Vascular Surgical Procedures