. The American journal of roentgenology, radium therapy and nuclear medicine . xure (Figs. 4, 7, and 8). 7. These veils are rarely if ever obstruc-tive to the pylorus, and if gastric retentionoccurs, it is probably functional rather thanorganic. 8. If the veil fails to extend as far up asthe cap, or stomach, it may then involveonly the anterior surface of the descendingduodenum, causing that to be adherentto the under surface of the liver, gall-bladder, or hepatic flexure. This is the typeof pathology described by Harris, but theveil in Figure 7 also extends up across thecap. I have seen no ca
. The American journal of roentgenology, radium therapy and nuclear medicine . xure (Figs. 4, 7, and 8). 7. These veils are rarely if ever obstruc-tive to the pylorus, and if gastric retentionoccurs, it is probably functional rather thanorganic. 8. If the veil fails to extend as far up asthe cap, or stomach, it may then involveonly the anterior surface of the descendingduodenum, causing that to be adherentto the under surface of the liver, gall-bladder, or hepatic flexure. This is the typeof pathology described by Harris, but theveil in Figure 7 also extends up across thecap. I have seen no case where the veil islimited to the descending duodenum. 9. There may be an angulation, rarelyamounting to a partial obstruction, involv-ing the midportion of the descendingduodenum; it is evident that this wasaccentuated to such a degree in the casesdescribed by Harris that he did not realizethat this veil extended up to and across theanterior surface of the cap; or, perhaps inhis case, the cap was not involved in thisveil (Fig. 7). These veils, either by direct contraction.
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