The British hepatic angiosarcoma register.

A register of British cases of primary hepatic angiosarcoma (HAS) was established in 1974 to monitor the occurrence of cases from 1963 onwards. Details of cases dying in 1963-77 have been obtained. Thirty-five cases were agreed as HAS by panel of liver pathologists, and occupational and medical information was obtained in the majority of these. Two cases were attributable to VCM exposure, and eight others had received intra-arterial Thorotrast. In 1978-79, two more cases were confirmed in VCM polymerization workers.