Microscopy findings of the resected specimen. Bile ducts were dilated and had thickened walls (asterisks). Ectasias result in a predisposition to repeated attacks of cholangitis with complications such as intrahepatic lithiasis, amyloidosis, and cholangiocarcinoma, but they were not present in this case. The lining epithelium (arrows) comprised columnar and cuboidal cells (hematoxylin and eosin stain, A: ×40, B: ×200).