Named after the American pathologist Frank Burr Mallory and also known as alcoholic hyaline, mallory body is an eosinophilic intracytoplasmic inclusion body found in the liver parenchyma in a variety of liver diseases. It consists of a perinuclear aggregate of filamentous material that mostly consists of intermediate cytokeratin filaments.Mallory bodies primarily contain keratin-8 (KRT8) and keratin-18 (KRT18).