Gawande R, et al. - In patients with hepatocellular carcinoma (HCC), researchers assessed MR imaging parameters, including quantitative multiphasic post-contrast enhancement with subtraction and qualitative diffusion weighted imaging, in discerning benign from to malignant portal venous thrombosis (PVT). Based on pathological data or serial imaging growth criteria, they described PVT as benign or malignant in 39 patients. Data revealed that sensitivity and specificity was >90% of 20% enhancement on subtracted late phase. In patients with HCC, post-contrast and subtraction MRI can dependably differentiate malignant from benign PVT utilizing subtracted or non-subtracted images and at arterial, portal venous, or delayed phase timing.