{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Hepatocyte Specific Antigen (or Hep Par 1) antibody binds to both benign and malignant liver derived tissues including hepatoblastoma, hepatocellular carcinoma, and hepatic adenoma according to literature. HSA antibody binds to both normal adult and fetal liver tissue. The typical pattern is a granular cytoplasmic staining."}]}]}