28 August 2026
: Case report 
Aggressive Sporadic Renal Angiomyolipoma With Tumor Thrombus Extending Into the Inferior Vena Cava, Right Atrium, and Right Ventricle: A Multidisciplinary Case Report
Unusual clinical course, Challenging differential diagnosis, Unusual setting of medical care
Caroline J. Cushman
ABCDEF 1*, Kolos K. Nagy EF 1, Rodolfo Martinez D 2, Kaiser R. Tarafdar ABCDEF 3
DOI: 10.12659/AJCR.952664
Am J Case Rep 2026; 27:e952664
Figure 1 Axial views of contrast-enhanced computed tomography demonstrating a large left renal angiomyolipoma (AML). The tumor measures 16.7 cm in maximal axial dimension and arises from the left kidney (A). Associated tumor thrombus is visualized within the left renal vein causing partial luminal occlusion (B), extending into the inferior vena cava (IVC) (C), and reaching the right atrium adjacent to the tricuspid valve, with intermittent prolapse into the right ventricle (D).