Fig. 18
From: Tumor in the veins: an abdominal perspective with an emphasis on CT and MR imaging
A 57-year-old male patient with no significant past medical history presented with abdominal pain and hematochezia. Colonoscopic examination and biopsy confirmed adenocarcinoma of the rectum. Coronally reformatted postcontrast CT image demonstrates the primary tumor (arrows) and thrombus within the lumen of the caudal portion of the IMV (arrowheads). Surgical resection and histopathologic examination confirmed the tumoral thrombus in the resected portion of the IMV