Simple biliary cysts of the liver can be lined by mucinous epithelium.
Newton A C S WongMuhammad AbdalkoddusNadeem Al-KhafajiHuw RoachReyad AbbadiPublished in: Histopathology (2022)
Focal mucinous epithelium can be present in at least one-third of surgically-managed, simple biliary cysts of the liver. Such epithelium may be metaplastic and should not be misinterpreted to indicate a diagnosis of MCN but, apart from this, appears to have no clinical significance. Ovarian-like stroma may therefore be the only histological feature that reliably distinguishes MCN from simple biliary cyst.