Falsely Negative Doppler Examinations in Testicular Torsion

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Abstract
Use of the Doppler ultrasonic flow meter to assess testicular perfusion has potentially precise application in the evaluation of acute scrotal swelling. An almost infallible degree of accuracy in differentiating testicular torsion, with reduced or absent blood flow, from inflammatory processes, with accompanying increased vascular perfusion was previously reported. This report of 4 falsely negative Doppler examinations confirmed by surgical exploration warns agianst relying on this as a single test in the diagnosis of testicular torsion. Only thorough clinical assessment of each patient and exploration in doubtful cases assures maximum testicular salvage.