. The American journal of roentgenology, radium therapy and nuclear medicine . lique positioncannot be foretold in any case. A fewdegrees either way from it will militateseriously against its usefulness. It may besaid that approximately 5 per cent ofpatients pass clear to the right lateralposition. These are patients of sthenichabitus. The first class of evidence, namely, thatof change of form and relation in the firstand second portions of the duodenum, and course of the second portion in the duod-enum are quite as characteristic as theindentations in the bulb, in our second cl
. The American journal of roentgenology, radium therapy and nuclear medicine . lique positioncannot be foretold in any case. A fewdegrees either way from it will militateseriously against its usefulness. It may besaid that approximately 5 per cent ofpatients pass clear to the right lateralposition. These are patients of sthenichabitus. The first class of evidence, namely, thatof change of form and relation in the firstand second portions of the duodenum, and course of the second portion in the duod-enum are quite as characteristic as theindentations in the bulb, in our second class of evidence, namely,that of changes in the normal gastricphysiology, is most interesting, but notnearly as decisi\e in character as changesnoted in duodenum. It may be statedthat the normal stomach accepts theliquid opaque meal, holding it in the formof a column of about equal width through-out, the pyloric sphincter closing, prevent-ing its discharge into the intestine, andthe cardiac sphincter closing, preventingregurgitation of the stomach contents intothe Fig. 5. Angulation second portion of duodenum. due to pressure mainly, although adhesionfixtures cannot be excluded as a cause, con-sists of clean-cut indentations of the duod-enal bulb, crescentic deformities, usuall\seen on the lateral aspect of the bulb or onthe inferior aspect; also irregular deformi-ties of the bulb, not of the crescentic type,and distortion in the course of the descend-ing duodenum amounting in many cases tovery great angulation. These gall-bladderpressure deformities are, in a general way,much alike in all cases, changing as to theparticular point in the duodenum at whichthe pressure is most prominently seen,dependent on the pathology present in theindividual case. The angulations in the Fig. 6. Bulb deformity; angulation second portion ofduodenum. There is frequently seen, in cases of gall-bladder and bile duct infection, a narrowingin the pyloric end of the stomach producedby spasm
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