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. 2019 Feb 5;5(1):E34–E51. doi: 10.1055/a-0825-6708

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Fig. 2 — Contrast-enhanced radial endorectal ultrasound (ERUS) showing a hyperenhanced (hypervascular) semi-circumferential rectal tumor (red arrows), with an area of un-enhanced central necrosis (courtesy of Adrian Săftoiu, Elena Tatiana Ivan).