to the bile duct epithelium that leads to upregulation of ICAM and MHC class II expression (Fig. 1). Viral antigens or new, previously "unexposed" self antigens may be presented in the context of ...

Hepatic biliary adenofibroma is an exceedingly rare biliary neoplasm that primarily affects adults. It typically presents as a solitary mass composed of low-grade microcystic and tubuloglandular bile ...