成人的輸尿管囊腫：病例報告

Intravesical Ureterocele in Adult: A Case Report

本文報告左側輸尿管末端囊腫，在前列腺肥大的懷疑之下，經由超音波術（合併實時間、彩色都卜勒、頻譜都卜勒3項）意外發現的1例。患者係67歲男性，因頻尿、脹尿和輕度難尿而就醫。實時間超音波術（real time ultrasound）顯示該囊腫因進尿而膨脹，又因排尿而縮小；彩色都卜勒（color Doppler ultrasound）明顯地呈現該囊腫的膀胱內射尿影像，而頻譜分析（spectral Doppler ultrasound）則顯示輸尿管動力學變化，與腎泌尿功能受影響的程度。我們認為：合併實時間、彩色都卜勒和頻譜都卜勒超音波術的檢查，可用以施行輸尿管末端囊腫的尿路動力學研究。

We reports a case of intravesical ureterocele of left ureter found during ultrasonography for detection of the benign prostate hypertrophy. The patient was a 67-yr-old male visiting our OPD because of mild dysuria, frequency of urination and pelvic distension. The real-time ultrasound demonstrated that the ureterocele enlarged with urine filling, and became smaller with ejaculation of urine into the vesicle; by color Doppler ultrasonography the ureteric jet from the ureterocele could be well visualized, and with spectral Doppler ultrasound it showed a Doppler wavefrom of momopeak type that was different from a normal waveform of multi-peak type. Moreover, evaluation of the renal function and the ureterodynamics of the left ureter with ureterocele were achieved by calculation of the ureteric jet index through combined real-time and Doppler ultrasonography.