In a 3 months old, cross breed lamb increase of the liver size was observed along with a very rough and irregular surface.
When sectioned the liver parenchyma showed multiple irregular ductal dilatations (cholangiectasy) and cystic cavities filled with greenish liquid.

Histopathological examination revealed a widespread proliferation of irregular cavities lined by ductal biliary epithelium and associated with also widespread intense interstitial fibrosis. Liver parenchyma was observed in a small proportion but it had a normal appearance.

The lesion was classified as congenital hepatic cystic degeneration . Diagnosis of neoplasia or parasitic cysts was ruled out.

Enlarged liver of pale coloration.

Enlarged liver of pale coloration.

when sectioned it showed multiple cystic cavities filled with greenish liquid.

when sectioned it showed multiple cystic cavities filled with greenish liquid.