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Urethrography. Detailed Consideration in 154 Males.

Arch Intern Med (Chic). 1936;57(6):1249. doi:10.1001/archinte.1936.00170100194014.
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In this publication one hundred and fifty-four cases of conditions studied by means of urethrograms are analyzed and the results are corrolated with the clinical operative and pathologic findings. The conditions include strictures, urinary fistulas, and prostatic disease, both inflammatory and obstructive. In some cases the urethra was studied after operation and, interestingly, the results of prostatectomy were demonstrated.

Knutsson used iodized oil almost exclusively as his contrast medium, chiefly because of its low degree of irritation. Using a special syringe and clamp arrangement, he injected the medium and filled the urethra while the plates were being exposed, in order to visualize the posterior part of the urethra. One plate was exposed after injection of the medium in order to make possible study of the reflex contraction of the prostatic part of the urethra. Urethrograms were taken in the anteroposterior, lateral and right and left oblique positions.

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