“…W hether round cell infiltration of the portal spaces is a definite pathological process, is not completely in the Liver in Diseases of the Biliary Tract 237 certain [2,50], It has been m aintained th at these round cells represent a norm al collection of lymphoid tissue [23] which normally increases w ith age (2,13,22,23,35,44]. This change is often found in liver biopsies from completely healthy subjects [35,44].…”