case_images: PMC5968264_01
case_images: Multidetector-row computed tomography scan clearly showing active contrast extravasation in the lower rectum (arrow).
case_images: crg-0012-0202-g01.jpg
case_images: PMC5968264_01_crg-0012-0202-g01.jpg
case_images: F1
case_images: To identify the site of bleeding, prompt MDCT was performed, and the scan clearly showed active contrast extravasation in the lower rectum (Fig. 1).
case_images: Photograph showing the exposed blood vessel in the lower rectum during colonoscopy.
case_images: crg-0012-0202-g02.jpg
case_images: PMC5968264_01_crg-0012-0202-g02.jpg
case_images: F2
case_images: Subsequently, urgent colonoscopy was performed with bowel preparation, and pulsatile, fresh bleeding from the exposed nipple-like vessel was observed without mucosal defect or ulceration in the lower rectum (Fig. 2).