Focal nodular hyperplasia

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  • Second most common liver tumor (1st is Hemangioma)
  • Localized hyperplastic response to congenital AVM
  • F>M
  • No clinical significance, LFTs normal. No biopsy, surgery or follow-up
  • Central scar is T2 hyperintense, don't confuse this entity with fibrolamellar HCC
  • 2/3 take up Tc99m sulfer colloid because contain Kupffer cells


Patient A
Central Scar US
Central Scar MRI


Patient B
FNH T2 MRI
FNH T1 MRI
FNH Post GD MRI
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