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Updated: Feb 17, 2026
Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
Published on: February 19, 2021
Multiple focal nodular hyperplasia: MRI features
Kiran K Busireddy1, Miguel Ramalho2, Mamdoh AlObaidy3
1Department of Radiology, University of North Carolina at Chapel Hill, NC, USA.
Purpose:
To describe MRI features of multiple Focal Nodular Hyperplasia (FNHs).
Methods:
40 consecutive subjects (37 females, mean age, 38.8years) were included. All studies were independently reviewed. This was an observational study to define the radiological features of multifocal FNH.
Results:
130 lesions were evaluated. The majority (88.5%), were peripheral in location. 92.3% lesions were lobulated. Marked enhancement was present in 94.6% lesions. In the portal venous and delayed phase, 46.2% and 47.7% lesions were mildly hyperintense. Central scar was present in 77% lesions.
Conclusions:
Distinctive features included predominant subcapsular location and mild hyperintensity in the delayed phase, seen in nearly 50% of FNHs.
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