Hepatocellular tumours in roe deer in Britain.
Between January 1992 and March 1994 the geographical distribution and prevalence of hepatocellular tumours in roe deer in Britain was studied. The highest prevalence was found in north east England and in the east of Scotland. An as yet unidentified dietary factor is thought to have been involved in the development of these tumours. The histological features of 37 hepatocellular neoplasms are summarised.