[Renal cancer in Denmark in 1943-1986. Cancer statistics number 27].

During the past 45 years, the number of new cases of parenchymatous renal cancer have increased from approximately 230 to over 500 per annum. The incidence of renal cancer increased until the middle of the nineteen seventies, after which it stagnated. Parenchymatous renal cancer is nearly twice as frequent in men. During the entire period, Wilms' tumour and sarcoma have been very rare with only few new cases every year.