. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . uscles. The group of dark areas to the right of the centre and below the middleof the cut indicate the calculi. On the negative they are much more readily made out, but it has notbeen possible to reproduce them satisfactorily. Six or seven stones were counted on the negativebefore, ten were found after operation ; composition, uric acid and urates coated with calcic phosphate. X-ray examination on November 9 showed stones in right kidney;six or se
. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . uscles. The group of dark areas to the right of the centre and below the middleof the cut indicate the calculi. On the negative they are much more readily made out, but it has notbeen possible to reproduce them satisfactorily. Six or seven stones were counted on the negativebefore, ten were found after operation ; composition, uric acid and urates coated with calcic phosphate. X-ray examination on November 9 showed stones in right kidney;six or seven could be made out on the negative. See Fig. 387. November 10. Operation done. Kidney found low down in lumbarregion; cortex split along convex border and a number of stones re-moved from calices, pelvis, and infundibula. As little secreting kidneyremained, it was removed. The patient made a good recovery. Dis-charged December 15. See also Figs. 388 and 389. 620 THE ROENTGEN RAYS IN MEDICINE AND SURGERY Comparison of X-Ray Negatives and Radiographs. — The negativesshould be carefully exammed, — we must not be satisfied with the appear-. Fig. 388. Shows a radiogiaph of the calculi after thoy had been removed from the kidney. ances seen on the radiograph, — as often the dry negative will revealclearly what the print at most suggests. Further, some things may beseen during the development of the plate, which are not apparent later.
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