FIGURE 2.

Histological findings of Case 1. (A) Focal necrosis is present in the lobular parenchyma (hematoxylin and eosin staining, ×20). (B) A damaged interlobular bile duct has an irregular configuration and intraepithelial inflammatory cells. The surrounding infiltrate is rich in lymphocytes (hematoxylin and eosin staining, ×40). (C) CD8‐positive cells are present in the portal area and the lobular parenchyma (CD8 staining, ×20). (D) Distribution of CD3‐positive cells similar to that of CD8‐positive cells (CD3 staining, ×20)