Fig. 5From: MRI-detected extramural venous invasion of rectal cancer: Multimodality performance and implications at baseline imagingĀ and after neoadjuvant therapyExtramural invasion on diffusion weighted imaging. A 41-year-old man with rectal adenocarcinoma. T2-weighted image demonstrates a distended perirectal vessel with a lack of flow void and central tumor signal intensity which is contiguous with the primary rectal tumor (a arrow). Diffusion-weighted image shows a high signal intensity cord-like structure contiguous with the primary rectal tumor (b arrow)Back to article page