Laparoscopic management of obturator nerve schwannomas: experiences with 6 cases and review of the literature.

OBJECTIVES: To present our experiences in management of obturator nerve schwannomas by laparoscopy. PATIENTS AND METHODS: Six patients who were diagnosed preoperatively with pelvic tumors and histologically with obturator nerve schwannomas were treated by laparoscopy in our hospital between 1998 and 2009. Clinical data were obtained by a retrospective review of all the patients' medical records, radiologic reports, pathologic reports, and operation videos. RESULTS: A total of 6 tumors were found in 6 patients, none of which was correctly, preoperatively diagnosed as a schwannoma. In 5 of them, obturator nerve roots were identified to be associated with the tumors during the operation. All of the tumors were resected successfully by laparoscopy, including 2 resected by enucleation. Postoperatively, 2 patients developed a permanent neurological deficit, 2 patients developed transient nerve neuropathy but complete resolution within 8 weeks, and the other 2 developed no neurological deficit. Pathologic examination showed that all the tumors were benign schwannoma. At a mean follow-up of 24 months (range, 12 to 48 mo) postresection, all the patients remained free from recurrence. CONCLUSIONS: Pelvic schwannomas are rare and difficult to diagnose preoperatively. The intraoperative observation of the nerve running through the tumor may aid the diagnosis. Although obturator nerve injury does not seem to be associated with severe impairments, efforts should be made to preserve the integrity of the nerve. Laparoscopic surgery is a safe and feasible method for approaching benign schwannoma in the obturator fossa.

Modified radical cystectomy and detenia cecocolon neobladder in women(report of 4 cases) / 中华泌尿外科杂志

Objective To improve the quality of life of the female patient after radical cystectomy. Methods Modified radical cystectomy and detenia cecocolon neobladder were performed in 4 female patients with bladder cancer.Three patients underwent radical cystectomy with preservation of the anterior wall of vagina.One patient underwent radical cystectomy with resection of the anterior wall of vagina. Results The patients were followed-up for 6 to 30 months.All 4 women achieved acceptable daytime continence,and 3 out of 4 achieved nocturnal continence.The vesical capacity ranged from 305 to 438 ml and intravesical pressure at maximum capacity ranged from 18 to 45 cmH 2O(1 cmH 2O=0.098 kPa);only 1 had nocturnal incontinence.The urinary dynamic examination showed the maximum urinary flow rate varied from 15.1 to 22.6 ml/s and residual urine volume ranged from 0 to 30 ml.The cystography showed there was no ureteral stenosis or reflux in the 4 patients.Their renal function and metabolism of electrolytes were normal. Conclusions Detenia cecocolon neobladder after modified radical cystectomy in selected women can obtain satisfactory continence and voiding results.