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Fig. 1A —55-year-old man with nonanastomotic stricture after colonic interposition for esophageal carcinoma. Frontal spot image from single-contrast upper gastrointestinal tract examination shows long segment of narrowing (white arrows) involving proximal two thirds of interposed colon. Note relatively smooth contour and tapered margins (long black arrows) of stricture. Esophagocolic anastomosis (short black arrow) is located proximally in upper chest just above aortic arch.