case_images: PMC11272403_01
case_images: Computerized tomography (CT scan) portal vein phase, transverse section: a nonenhanced thrombus in the portal vein is depicted, indicating a chronic phase (orange arrows).
case_images: CRIID2024-9443664.001.jpg
case_images: PMC11272403_01_CRIID2024-9443664.001.jpg
case_images: fig1
case_images: The thrombosis of the SMV was complete, and collaterals to the small bowel and stomach had been already developed (Figures 1, 2, and 3).
case_images: Computerized tomography (CT scan) portal vein phase, transverse section: an ill-defined hypodense lesion consistent with chronic thrombosis is depicted at the superior mesenteric vein (orange arrows).
case_images: CRIID2024-9443664.002.jpg
case_images: PMC11272403_01_CRIID2024-9443664.002.jpg
case_images: fig2
case_images: The thrombosis of the SMV was complete, and collaterals to the small bowel and stomach had been already developed (Figures 1, 2, and 3).
case_images: Computerized tomography (CT scan) portal vein phase, coronal view: ill-defined malignant tissue infiltrating the superior mesenteric vein and portal vein (blue outline). Dilated small veins compatible with collateral circulation (ectopic varices) in the terminal ileum (yellow arrows). Tortuous dilated veins are observed at the fundus of the stomach (orthotopic varices) (orange arrows).
case_images: CRIID2024-9443664.003.jpg
case_images: PMC11272403_01_CRIID2024-9443664.003.jpg
case_images: fig3
case_images: The thrombosis of the SMV was complete, and collaterals to the small bowel and stomach had been already developed (Figures 1, 2, and 3).
case_images: PET/CT transverse image: an area of linearly increased metabolic activity is observed in the upper abdomen, adjacent to the pancreas, which corresponds to a part of the portal vein and superior mesenteric vein consistent with thrombosis (neoplastic thrombosis) (blue arrows).
case_images: CRIID2024-9443664.004.jpg
case_images: PMC11272403_01_CRIID2024-9443664.004.jpg
case_images: fig4
case_images: At that time, a PET/CT was performed as an additional modality to secure the neoplastic nature of the thrombus (Figure 4).