What is a fluid-filled space lined by biliary epithelium found in the liver called?

A fluid-filled space lined by biliary epithelium found in the liver is referred to as liver cysts. These cysts are typically benign, and they can form in the liver due to various reasons, including congenital issues or as a result of infections or other pathological processes. The biliary epithelium lining the cyst is characteristic, as it differentiates these cysts from other types of lesions found in the liver.

Liver cysts may appear as well-defined hypoechoic lesions on an ultrasound and are often asymptomatic. When they become symptomatic, it is usually due to their size or secondary complications. Understanding the nature of liver cysts and their relation to the biliary system is essential for accurate diagnosis and management.

In contrast to other choices, hepatic abscesses are typically filled with pus and are areas of infection, hemangiomas are vascular tumors, and bile duct strictures refer to narrowing of the bile ducts rather than fluid-filled spaces. Thus, liver cysts specifically align with the description provided in the question.