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腎盂輸尿管吻合處狹窄之超音波表徵

Sonographic Findings and Clinical Useful Role of Hydronephrosis Due to Ureteropelvic Junction Stenosis

摘要


腎盂輸尿管吻合處狹窄臨床上並不常見,但卻是先天性上泌尿道系統異常中最常見之一[1]。可能引起併發症有水腎(hydronephrosis),高氮血症(azotemia),甚至成為慢性腎衰竭。自民國70年1月至民國82年1月,曾接受過即時性超音波(real-time sonography)檢查,經手術和組織病理學證實為腎盂輸尿管吻合處狹窄,本院共有52位病例。我們覆閱其檢查,認為即時性超音波對於腎盂輸尿管吻合處狹窄為一靈敏而有效之檢查工具。如果掃描中發現,腎盂前後徑大於一公分,擴大的交通性腎盂,分枝腎漏斗,擴大之腎外腎盂,而且無擴張輸尿管等現象時,必須特別考慮是否有腎盂輸尿管吻合處狹窄。本研究之目地為利用即時性超音波檢查,探討腎盂輸尿管吻合處狹窄之表徵,與其它因素引起的水腎作鑑別診斷。

並列摘要


Sonography plays an important role in detection of hydronephrosis. Hydronephrosis may result from obstuction, infection or reflux. A total of 52 cases were collected with the sonographic finding of hydronephrosis from ureteropelvic junction stenosis, both adults and children, were included over the past 10 years. The condition presented central sinus echoes being absent or effaced secondary to pressure dilatation of the pyelocaliceal system. Other findings were anteroposterior diameter of the renal pelvis greater than 10 mm, enlarged extrarenal pelvis and branching infundibula.

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