膀胱癌の臨床統計学的観察

Abstract

A statistical analysis was made on 121 cases of bladder tumor which were treated in our clinic during past 5 years from January of 1970 to December of 1974. Ninety-five cases were male and 26 were female. They were calculated as 0.87% of ouptatients and 9.5% of inpatients and the maleto-female ratio was 3.6. The highest incidence was found in the sixth decade and the cases of over 50 year-old age occupied 84.3% of all the cases. Main clinical symptoms were hematuria, pollakisuria and pain on micturition. About 80% of all the cases came to our clinic within three months from their first symptom. From the cystoscopic findings, 44.6% of all tumors were located on the lateral wall, 21.5% was on the posterior wall and 15.7% was on the trigone. About 56% of all tumors were single and 44% were multiple. In classification of the shape of tumors, 32.2% of all tumors were papillary and pedunculated type, 27.3% were papillary and sessile type and 38.9% were non-papillary and sessile type. Histological findings showed that the transitional cell type was 91.7% of all tumors, squamous cell type 5.9%, adenocarcinoma type 0.8% and no undifferenciated cell type tumor. According to Broders' and Jewett-Marshall's classification, the highest incidence was in grade I 52.2% and stage BJ 40.9%. There was a little relationship between the shape of tumor and grade or stage but no relationship between the number of tumor and grade or stage. TUR-Bt was performed in 58 cases, total cystectomy in 54, electrocoagulation in 11 and partial cystectomy in 4. Urinary diversion consisted of 16 cases of ileal conduit, 17 of ureterosigmoidostomy, 10 of rectal bladder and 11 of ureterocutaneostomy.