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[A case of acquired occlusion of the upper ureter by ampullary hernia of the renal hilus].

The authors report the documented observation of a 59 year old woman admitted to hospital for recent pains in the left flank caused by acute hydronephrosis. Surgical exploration revealed a surprising loss of continuity in the ureter resulting from an ischemic occlusion of the upper ureter. The occlusion was in turn due to compression from a hernia of the renal hilum. The authors conclude with a brief physiopathologic study.