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JAMA. 1930;95(24):1845-1846. doi:10.1001/jama.1930.02720240055023.
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The Thirtieth Congress of Urology  The thirtieth annual session of the Société d'urologie has just closed. It was presided over by Dr. Chevassu, surgeon to the Hôpitaux de Paris and agrégé professor at the Faculty of Medicine. It was attended by a large number of urologists, a considerable proportion of whom were foreigners. Prof. Maurice Gérard of Lille, who presented a paper on "Contusions of the Kidney and Their Remote Results," gave a good clinical description of the condition and expounded various theories advanced to explain the mechanism of renal contusion (compression exerted by the vertebrae, hydraulic pressure of the kidney fluids, traction exerted by the pedicle) but did not give his personal approval to any one of them. The immediate prognosis is often favorable, but the remote results are uncertain, as partial or total atrophy of the organ may ensue, owing to retraction of the cicatrix. In the majority


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