focal nodular hyperplasia (FNH)
focal nodules of normal hepatocytes, Kuppfer cells + bile ducts
- F > M
- rare, benign
- multiple in 20%
- hemorrhage (most common complication) in only 2-3%
(unlike hepatic adenoma)
- stellate fibrous septae ("stellate scar")
- NM: normal or increased uptake on HIDA and sulfur colloid
- MR: lesions usually hypointense to liver on T1 and T2 (scar maybe hyperintense on T2)
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© 2002, C.E. Kahn, Jr.
2002-04-18