Focal nodular hyperplasia
Right upper quadrant pain.
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A large mass is seen at left hepatic lobe with bright contrast enhancement on arterial phase. The central scar of the lesion remain low attenuation on early phases. The scar demonstrate mild enhancement on delayed phase, but the lesion's density itself goes back to the background liver (isodense) on delayed phase.
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The CT findings in a 29 Y/O female are consistent with focal nodular hyperplasia (Histologically proven).
FNH is a benign tumour-like mass of the liver, second only to haemangiomas in frequency and most frequently found in young to middle aged adults, with a strong female predilection.
- 1. Brancatelli G, Federle MP, Grazioli L et-al. Focal nodular hyperplasia: CT findings with emphasis on multiphasic helical CT in 78 patients. Radiology. 2001;219 (1): 61-8. Radiology (full text) - Pubmed citation
- 2. Mortelé KJ, Praet M, Van vlierberghe H et-al. Focal nodular hyperplasia of the liver: detection and characterization with plain and dynamic-enhanced MRI. Abdom Imaging. 27 (6): 700-7. doi:10.1007/s00261-001-0140-6 - Pubmed citation