Renal vein to portal vein collaterals in three cases of renal cell carcinoma extending into the inferior vena cava: Consequences for chemoembolization |
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Authors: | Yoshito Tsushima MD Mitsuomi Matsumoto Noriko Sato Hiroshi Ishizaka Keigo Endo |
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Institution: | (1) Department of Diagnostic Radiology, Gunma University Hospital, 5-39-15 Showa-Machi, 371 Maebashi, Gunma, Japan;(2) Department of Nuclear Medicine, Gunma University Hospital, 3-39-15 Showa-Machi, 371 Maebashi, Gunma, Japan |
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Abstract: | Three patients with renal vein and inferior vena cava (IVC) tumor thrombus from left renal cell carcinoma (RCC) showed Lipiodol
deposits in the liver following selective SMANCS (styrene maleic acid neocarzinostatin)/Lipiodol embolization of the renal
tumors. In 2 of the 3 patients, renal-portal communications were demonstrated during selective renal arteriography. In I of
these patients, considerable liver dysfunction occurred after the second renal chemoembolization and Lipiodol deposits persisted
in the liver for about 1 month. We conclude that these anastomoses need to be considered prior to embolization therapy of
patients with RCC and tumor thrombus in the renal vein and IVC. Sclerosing substances or larger particles may be better embolic
agents in such patients. |
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Keywords: | Renal cell carcinoma Renal vein and IVC obstruction Renal vein to portal vein collaterals SMANCS/Lipiodol |
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