Fig. 14
From: Tumor in the veins: an abdominal perspective with an emphasis on CT and MR imaging
A 67-year-old male with no past medical history presented with right flank pain and hematuria. US study showed a large infiltrative mass filling right perirenal space. a Axial plane T2W MR image demonstrates a solid mass with heterogeneous signal intensity infiltrating the right kidney (arrows). Also, note is made of the expanded right testicular vein filled with thrombus (arrowhead) having a similar signal texture with the primary mass concerning for a tumoral thrombus over a bland thrombus. Axial (b) and coronal (c) plane postcontrast T1W MR images show enhancement within the thrombus (arrow) confirming its tumoral nature. Histopathological examination after surgical resection revealed primary RCC and tumoral thrombus within the testicular vein