Retroperitoneoscopic treatment of ureteral invagination caused by a long fibroepithelial polyp protruding into the bladder: report of a case.

We describe how we performed retroperitoneoscopic surgery for a 15.5-cm fibroepithelial polyp, which originated in the lowest portion of the right upper ureter, protruded intermittently into the bladder, and caused ureteral invagination. To our knowledge, this is the first report of the retroperitoneoscopic management of ureteral invagination caused by a long fibroepithelial polyp.

Inguinal hernia after radical perineal prostatectomy: comparison with the retropubic approach.

Objectives: To clarify the characteristics of inguinal hernia (IH) after radical perineal prostatectomy (RPP) compared with that after radical retropubic prostatectomy (RRP).

Methods: We retrospectively reviewed 285 and 311 men who underwent RPP and RRP, respectively, for clinically localized prostate cancer between August 2000 and June 2006, using medical records and a telephone survey.

Results: The incidence of postoperative IH after RPP was 1.

Prevalence of renal cell carcinoma: a nation-wide survey in Japan, 2002.

Objective: To investigate the incidence of renal cell carcinoma, classified by sex, age group and region in Japan, following a 5-year interval after a previous survey performed in 1997.

Methods: The survey was conducted between the beginning of January 2002 and the end of December 2002. A total of 1288 institutions in all 47 prefectures throughout Japan were requested to register cases.

Primary amelanotic malignant melanoma of the female urethra.

The case is reported of amelanotic malignant melanoma of the female urethra mimicking urethral caruncle. A 75-year-old woman complained of a mass of the external meatus. Urethral carunclectomy was performed, but histological diagnosis was amelanotic malignant melanoma.

Three-dimensional navigator for retroperitoneal laparoscopic nephrectomy using multidetector row computerized tomography.

Purpose: We evaluated the efficacy of a 3-dimensional (D) navigator for retroperitoneal laparoscopic nephrectomy.

Materials And Methods: A total of 21 patients with malignant localized renal (16) or ureteral (5) neoplasms underwent multi-detector row computerized tomography. The 3-D navigator was created using volume rendering technique.

Localization and expression of tissue inhibitor of metalloproteinase-1 in human urothelial cancer.

Purpose: We evaluated the role of tissue inhibitor of metalloproteinase-1 (TIMP-1) in the invasion and metastasis of human urothelial cancer.

Materials And Methods: The expression level of TIMP-1 messenger (m)RNA was determined in 33 urothelial carcinomas, including upper urothelial cancer in 15 cases and bladder cancer in 18, by Northern blot analysis. Localization of TIMP-1 mRNA was analyzed by in situ hybridization.