[A surprising double tumor of the liver 60 years following thoratrast diagnosis].

A 66-year-old man with thorotrastosis of the reticuloendothelial system is described. Post mortem two tumours were found in an enlarged liver: a cholangiocarcinoma and an angiosarcoma. Coincidentally, a hilar neurofibroma was found. The former two tumours most probably developed because of a lifelong endogenous alpha-irradiation by thorium disintegration. The exceptional latency period of 60 years' duration is emphasized.