[Focal nodular hyperplasia of the liver]

A bioptical diagnosis of focal nodular hyperplasia was established in two adolescent girls and a 44-year old woman from extirpated isolated nodules in the liver clinically interpreted as tumours. A differential diagnostic definition of this aetiologically unexplained, probably hamartogenic affection appears to be assential especially as distinct from hepatic adenomas and hyperplastic postimflammatory processes.