. The American journal of roentgenology, radium therapy and nuclear medicine . esult of the biopsy. We must not be too sanguine: The Germansseem too confident of the simplicity of theproblem; very penetrating rays are a newadvance but are not always necessary, notalways harmless and not always efficacious. Barsony. Serration of the Greater Curvatureof the Stomach. (Wien. klin. ]\chnscbr.,1921, No. 22.) According to the author, serration of thegreater curvature is caused by the coarse foldsof the thick mucous membrane which has be-come inelastic. Spasm and peristalsis play nopart in this. Norma
. The American journal of roentgenology, radium therapy and nuclear medicine . esult of the biopsy. We must not be too sanguine: The Germansseem too confident of the simplicity of theproblem; very penetrating rays are a newadvance but are not always necessary, notalways harmless and not always efficacious. Barsony. Serration of the Greater Curvatureof the Stomach. (Wien. klin. ]\chnscbr.,1921, No. 22.) According to the author, serration of thegreater curvature is caused by the coarse foldsof the thick mucous membrane which has be-come inelastic. Spasm and peristalsis play nopart in this. Normally there exists already anincongruence between the contractility of themusculature and the elasticity of the mucousmembrane. This incongruence increases whenthe mucous membrane has lost its coarse folds which run across the greatercurvature produce its serration. If the stomachis properly contracted, but also folds are found. On the other hand, inthe h\ pertonic or ectatic, but hardly contractedstomach, only slight fold formation is THE AMERICAN JOURNALOF ROENTGENOLOGY VOL. IX [new series] AUGUST, 1922 No. 8 GRADUATE INSTRUCTION IN ROENTGENOLOGY* BY J. S. SHEARER, PH. University ITHACA, NEW YORK DURING a relatively short periodroentgenology has established foritself a definite field of usefulness as anaid to the physician and surgeon. Likemany other methods, it has solvedproblems where no one would have pre-dicted success, and disappointed itsvotaries in fields where great expectationswere at first entertained. In common with most innovations inmedicine, it has been compelled repeatedlyto demonstrate its value, and struggle foradequate recognition, often retardedmore by the extravagant claims of strenu-ous advocates than by the opposition ofbitter enemies. Its development has beenaided but little by the constitutedmachinery for medical education, or by theinfluence of great leaders in related fields,however clearly the latter
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