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(A) Flat bluish sub-mucosal serpentine vessels on colonoscopy. (B) Normal superior rectal artery and slight lamellar tumor stain on angiography. (C) Enhanced thickened rectal wall and serpentine enlarged vessels in the rectal mesentery with multiple calcification in pelvic on CTV. (D) T1W axial. (E) T2W axial. Thickening of the rectal wall with serpentine enlarged vessels in the rectal mesentery intermediate signal intensity on T1W and significantly hyperintense on T2W image.
