A case of an isolated mucosal web of the common hepatic duct is presented.
Such extrahepatic biliary webs are extremely rare causes of biliary obstruc
tion, likely congenital in nature, but presenting in later life due to the
initial patency of these webs in allowing bile drainage from the liver. The
relevant literature is reviewed; diagnostic and therapeutic aspects are di
scussed. Copyright (C) 2001 S. Karger AG, Basel.