Biliary hamartomas are benign and relatively common, occurring in 3% of the population. Pathologically they are comprised of small irregular branching bile ducts that may be dilated and embedded ...

[54] Benign biliary hamartomas, such as bile duct adenomas (also called peribiliary gland hamartoma), biliary adenofibromas and Von Meyenburg complexes are small, often subcapsular nodules.