So far as we have been able to find, pneumocystography was first used in the diagnosis of tumors of the bladder by one of us (Pfahler) in 1908, and this method was discussed by him at various roentgenology meetings from time to time. A formal presentation was made together with a lantern slide demonstration of a number of tumors of the bladder before the Philadelphia Roentgen Society on May 8, 1919.1 However, Braasch says: "Air was used in the bladder for the demonstration of a diverticulum by Kellar in 1904" (reference not given).
This method of study of tumors of the bladder we believe should be used as a routine because of the valuable primary and supplementary information that is obtained. We believe that pneumocystography cannot replace cystoscopy, but in the management of a serious condition such as tumors in the bladder, nothing that would be helpful should be
PFAHLER GE, VASTINE JH. THE ROENTGEN DIAGNOSIS AND TREATMENT OF TUMORS OF THE BLADDERTHEIR SERIAL STUDY WITH PNEUMOCYSTOGRAMS, SHOWING RESULTS OF TREATMENT BY IRRADIATION. JAMA. 1935;104(8):609–613. doi:10.1001/jama.1935.02760080005002
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