. American quarterly of roentgenology . i Fig. 17. Shown with an apology. Lateral view of man weighing overtwo hundred pounds. Numerous plates taken on different days show apersistent defect. Roentgen diagnosis: Cicatrix of ulcer on posterior-superior surface of first portion of duodenum. Operation showed oldulcer of first portion, on superior surface, extending as much anteriorlyas Fig. 18. Extensive cicatrices due to old ulcer. Confirmed by operation.

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