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Ultrasonic Demonstration of Ectopic Urethral Ureter in Duplex Kidney: Report of Two Cases

以超音波證實雙套腎臟之異位性尿道輸尿管:二病例報告

摘要


輸尿管異位合併雙套的腎盂系統爲泌尿道的先天性結構異常。根據Weigert-Mayer Law,腎上端的輸尿管由於異位而可能擴張,腎下端則可能具有輸尿管與膀胱逆流的現象。由於此種異常的腎臟通常功能不良,且臨床上缺乏特殊的症狀,一般的影像檢查(例如IVP)很難做出正確的診斷。利用液體傳導音波的原理,腹部超音波可清楚地顯現出擴大的輸尿管,並可追蹤至異位的源頭。當臨床上懷疑輸尿管異位時,超音波不僅爲一項方便的檢查,且可做出精確的診斷,因此爲首項的選擇。

關鍵字

輸尿管異位 尿道 腎臟

並列摘要


Two cases of duplex kidney with ectopic urethral ureter are reported. Using abdominal ultrasound, the poorly functioning upper pole pelvis of the involved kidney was found to be sonolucent which may have been misinterpreted for a simple renal cyst. The corresponding ureter was dilated and drained into the proximal urethra. Ultrasound is an ideal imaging modality in the assessment of children with a duplicated renal system and may provide detailed information about this structural anomaly, such as the exact insertion of the ectopic ureter.

並列關鍵字

duplex kidney ectopic ureter urethra

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