. Radiography and radio-therapeutics . h. Photograph from a post- ^ inrrpflsprl rnnidifv mortem specimen. Shows a well-marked constriction, result- ^^^^^ ^^^ mciedbeci lapiQlty ing from a healed ulcer. There were a number of small active of emptying, the admiuis- ulcers in both segments of the stomach. , ,• j- j. • in tration of atropme lead-ing to no change in the condition. Such cases require to be examined onmore than one occasion before an accurate diagnosis can be made. There isnever any residue after six hours. The normal stomach picture will beobtained on one examination, and the hour-g
. Radiography and radio-therapeutics . h. Photograph from a post- ^ inrrpflsprl rnnidifv mortem specimen. Shows a well-marked constriction, result- ^^^^^ ^^^ mciedbeci lapiQlty ing from a healed ulcer. There were a number of small active of emptying, the admiuis- ulcers in both segments of the stomach. , ,• j- j. • in tration of atropme lead-ing to no change in the condition. Such cases require to be examined onmore than one occasion before an accurate diagnosis can be made. There isnever any residue after six hours. The normal stomach picture will beobtained on one examination, and the hour-glass contraction at anothertime. The appearance of hour-glass contraction may be reproduced in thesame patient on more than one occasion. It is possible that the condition ofthe colon, bound by adhesions, may be an explanation of the contraction. True Hour-glass Contraction.—There are three varieties met with :(1) Congenital; (2) Non-malignant; (3) Malignant. (1) The existence of true congenital hour-glass contraction is doubted. HOUR-GLASS CONTRACTION 351 by many authorities, and when it does occur it may be regarded as ananatomical curiosity. (2) Non-malignant Hour-glass Contraction is generally due to ulcerationof the stomach wall, with secondary cicatricial contraction, ulcerationgenerally beginning at the lesser curvature of the stomach. Its frequencyis probably much greater than was at one time supposed. The demonstra-tion of its presence is due to the now almost universal adoption of the radio-graphic method in the diagnosis of disease of the stomach. Thurstan Hollandanalyses his findings in thirty-four consecutive cases of hour-glass points out the frequency of the condition, and shows that the correctdiagnosis in the majority of cases has been arrived at entirely from the radio-graph, for in the whole series the condition had, before the X-ray examination,been suspected in two only. The sex occurrence is interesting, as in thirty-two of the thirty-four
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