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RISS 인기검색어
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- 저자 : 백성현 (검색결과 304 건)
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Sarcomatoid Urothelial Carcinoma of the Renal Pelvis with Extremely Aggressive Clinical Behavior
백성현,윤성욱,백민기,임소덕,노용수,김형곤 대한비뇨의학회 2009 Investigative and Clinical Urology Vol.50 No.8
Sarcomatoid urothelial carcinoma is a rare malignancy with a poor prognosis. We experienced a case of sarcomatoid urothelial carcinoma of the renal pelvis with extremely aggressive clinical behavior. An 81-year-old woman underwent a laparoscopic radical nephroureterectomy to remove a 4.5x3.1 cm sized localized left renal pelvis mass. The mass was pathologically confirmed as a sarcomatoid urothelial carcinoma. Although the operation was successful, the patient died 2 months postoperatively with widely metastatic disease.
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Large Prostatic Calculi Causing Urethral Obstruction
백성현,윤성욱,백민기,김형곤,노용수 대한비뇨의학회 2009 Investigative and Clinical Urology Vol.50 No.8
Although prostatic calculi are common, complications are fortunately rare. Here, we report a case of prostatic calculi causing urethral obstruction. A 66-year-old man presented with severe voiding difficulty and urge incontinence. He was found to have multiple large prostatic calculi obstructing the prostatic urethra as well as several bladder calculi. Attempts at endoscopic removal were unsuccessful, which resulted in an iatrogenic urethral diverticulum due to fragmented calculi. The residual calculi and diverticulum were removed successfully by open surgery.
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백성현,이병기,윤성욱,백민기,김형곤,류영수,노용수,송은영 대한비뇨의학회 2008 Investigative and Clinical Urology Vol.49 No.3
Purpose: We examined the possibility of electroejaculation for the evaluation of fertility in the male rat. Materials and Methods: Ten 8-week-old Sprague-Dawley male rats that underwent seminal vesiculectomy were used for semen collection by electroejaculation. With a transrectal probe(60Hz, 3V, 0.5A), sign wave electric stimulation was applied to an anesthetized rat. Ejaculated semen was collected by a pipette and the volume and sperm density of the ejaculate were analyzed. Two weeks later, a second electroejaculation was performed under the same conditions with the same rats. Results: At the first attempt, all 10 rats ejaculated following electric stimulation. The mean semen volume was 8.9μl(range, 3.0-28.5μl) and the mean sperm density was 6,428/ml(range, 320-20,997/ml). At the second attempt, only 7 of 10 rats(70%) ejaculated. The mean semen volume was 5.6μl(range, 3.3-8.6μl) and the mean sperm density was 2,801/ml (range, 227-12,555/ml). Conclusions: These results indicated that electroejaculation has the possibility of being a useful method for evaluation of fertility in the male rat. (Korean J Urol 2008;49:266-270) Purpose: We examined the possibility of electroejaculation for the evaluation of fertility in the male rat. Materials and Methods: Ten 8-week-old Sprague-Dawley male rats that underwent seminal vesiculectomy were used for semen collection by electroejaculation. With a transrectal probe(60Hz, 3V, 0.5A), sign wave electric stimulation was applied to an anesthetized rat. Ejaculated semen was collected by a pipette and the volume and sperm density of the ejaculate were analyzed. Two weeks later, a second electroejaculation was performed under the same conditions with the same rats. Results: At the first attempt, all 10 rats ejaculated following electric stimulation. The mean semen volume was 8.9μl(range, 3.0-28.5μl) and the mean sperm density was 6,428/ml(range, 320-20,997/ml). At the second attempt, only 7 of 10 rats(70%) ejaculated. The mean semen volume was 5.6μl(range, 3.3-8.6μl) and the mean sperm density was 2,801/ml (range, 227-12,555/ml). Conclusions: These results indicated that electroejaculation has the possibility of being a useful method for evaluation of fertility in the male rat. (Korean J Urol 2008;49:266-270)
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