PMID: 8995468Nov 1, 1996Paper

"Aggressive" renal angiomyolipoma

Acta Radiologica
G CittadiniR S Pozzi Mucelli

Abstract

We describe the US and CT examinations of 4 patients with renal angiomyolipoma with an "aggressive" appearance, and review the literature. The imaging findings in 4 patients with benign renal angiomyolipomas associated with thrombosis of the renal vein and/or inferior vena cava are presented. In one case, enlarged lymph nodes at the renal hilum were found. CT demonstrated fat densities within both tumor and thrombus. In one patient, small lymph nodes with low density internal areas were detected in the para-aortic region. When considering our patients together with those reported in the literature, we found that most angiomyolipomas with venous invasion were large and centrally located within the kidney. Venous thrombosis was observed in 9 lesions of the right kidney, and in only 4 of the left one; detection of the site of origin was impossible in one case. One patient only had symptoms due to the thrombus; 10 had problems due to the tumor; and 3 were asymptomatic. Only 4 patients with pararenal enlarged lymph nodes have been reported on in the imaging literature. Fat-containing nodes were detected by CT in one case only; the others had enlarged nodes of soft-tissue density. In one patient the diagnosis of hamartomatous lymph n...Continue Reading

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Citations

Mar 4, 2000·The Australian and New Zealand Journal of Surgery·L J DoddsS Miller
Mar 1, 2011·The Kaohsiung Journal of Medical Sciences·Deyi LuoQiang Dong
Oct 14, 2004·International Journal of Urology : Official Journal of the Japanese Urological Association·A H M Manjurul IslamOsamu Nishizawa
Nov 28, 2006·BJU International·Mohammad S KhanProkar Dasgupta

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