Fig. 1. Histological picture of AIH. (A) Portal and peri-portal inflammatory infiltrate, characteristic of autoimmune hepatitis, consists of (B) plasma cells, lymphocytes and monocytes/macrophages, as phenotypically indicated by arrows labeled 1, 2, and 3, respectively. There is evidence of interface hepatitis and piecemeal necrosis of hepatocytes. Hematoxylin and eosin staining, magnification ×200 (A) and x400 (B). (Credit: Dr Alberto Quaglia).
