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A sample of 2,563 cases of liver cirrhosis diagnosed among 26,879 autopsies performed consecutively in the years 1976/85 was considered in order to study the morphologic feature of the liver cirrhosis and their relationship with primary liver cancer (PLC) outbreak. The study showed that age of patients affected by cirrhosis is a significant risk factor for PLC. In fact, in the 10 years considered, the observed mean annual increase of age at death of the cirrhotic patients was associated with an increase in PLC cases. This may be explained as a well known consequence of the conversion of micronodular type of cirrhosis to mixed and macronodular ones (for which cancer complication is more frequent) but also as a statistically significant higher risk of PLC in the older group of patients affected by micronodular cirrhosis. The older age of cirrhotic patients at death observed in the last few years in the Trieste area is probably correlated to a general European trend: our results, although relative to a restricted geographic area, seem to be of interest in order to identify better the patients at risk of PLC among those affected by cirrhosis.