PMC7521096_01
(A) Hematoxylin-eosin stain (high power) indicating rosette formation and emperipolesis. (B) Hematoxylin-eosin stain (low power) portal and adjacent parenchyma having lymphoplasmacytic infiltrate, representing interface hepatitis. (C) Hematoxylin-eosin stain (low power) focal necrosis in the parenchyma.
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F1
The biopsy was performed and demonstrated autoimmune hepatitis with findings of excessive lymphoplasmacytic infiltration at portal area extending into lobule (interface hepatitis), emperipolesis, rosette formation and focal parenchymal necrosis (Fig. 1).