Focal nodular hyperplasia (FNH)

Case contributed by Mohammadtaghi Niknejad


Abdominal pain.

Patient Data

Age: 35 years
Gender: Female

A large partially exophytic mass is present at posterior aspect of right liver lobe with bright contrast enhancement on arterial phase. The central scar of the lesion remains low-attenuation on early phases and demonstrates mild enhancement on delayed image. 

Case Discussion

Features on CT scan are consistent with focal nodular hyperplasia (histologically-proven), which is a benign tumor-like mass of the liver, second only to hemangiomas in frequency. It is most frequently found in young to middle-aged adults, and there is a strong female predilection.

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