[A workshop on the high risk group and the preventive oncology of renal cell carcinoma]

A workshop on the high risk group and the preventive oncology of renal cell carcinoma was held in Kyoto on September 7, 1990. The following subjects were presented: 1. Cohort study of renal cell carcinoma (Dr. Hirayama). 2. Pathoepidemiological study on the background of occurrence of renal cell carcinoma (Dr. Aoki). 3. Case-control study on renal cell carcinoma (Dr. Watanabe). 4. Geographic distribution of renal cell carcinoma in Japan (Dr. Minowa). 5. Pathological findings of small renal cell carcinoma (Prof. Yatani). 6. Pathoepidemiological study on occurrence of renal cell carcinoma (Dr. Tsuchihashi). 7. Clinical evaluation of small renal cell carcinoma (Dr. Masuda). 8. Clinical (biological) characteristics of renal cell carcinoma (Dr. Satomi). 9. Mass screening program for renal cell carcinoma on private urological clinic (Dr. Mishina). 10. Early stage detection of renal cell carcinoma (Dr. Ohe). 11. A review on the literature of epidemiology for renal cell carcinoma (Dr. Nakagawa). Possible risk factors reported for renal cell carcinoma were as follows: 1) Work in petroleum-related and dry-cleaning industries were positive risk. A predominant lifetime occupation as a professional was negative risk. 2) Milk or coffee consumption and use of artificial sweeteners were positive. Drinking of alcohol was negative. 3) Obesity was positive. 4) Personal history of cancer was positive. 5) Cigarette smoking was positive. 6) Exposure to radiation or hydrocarbon was positive. 7) Use of estrogen, diuretic and pain relievers was positive. 8) History of myocardial infarction, hypertension and diabetes mellitus was positive.