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Fig. 1B. —62-year-old man with stage pT3 pN2 rectal carcinoma. Transverse T1-weighted spin-echo MR image after IV administration of gadolinium and rectal administration of ferristene shows circular stenotic concentric thickening of rectal wall with invasion (arrowheads) of perirectal fat tissue between 8- and 2-o'clock positions. This lesion is located high in rectum. Note malignant lymph node (arrow) in perirectal fat tissue.