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A liver biopsy at the age of 1 year shows a noninflamed portal tract with a portal vein (asterisks) and hepatic artery (red arrows) and the absence of a bile duct (hematoxylin-eosin stain; ×400). The inset shows a reactive bile duct with lymphocytic ductulitis (hematoxylin-eosin stain; ×600).
