Harmeet Kaur MD, Presenter: Nothing to Disclose

Melissa W. Taggart MD, Abstract Co-Author: Nothing to Disclose

Sooyoung Shin MD, Abstract Co-Author: Nothing to Disclose

Randy Devereux Ernst MD, Abstract Co-Author: Nothing to Disclose

Evelyne Madeline Loyer MD, Abstract Co-Author: Research Consultant, Novartis AG

Thomas A. Aloia MD, Abstract Co-Author: Nothing to Disclose

Raju Sharma MD, Abstract Co-Author: Nothing to Disclose

Haesun Choi MD, Abstract Co-Author: Nothing to Disclose

Review the typical and atypical imaging findings of FNH with particular emphasis on unusual enhancement patterns seen with liver specific contrast agents. We review the radio-pathologic correlation of imaging findings 

Typical and atypical imaging appearances of FNH with extracellular and liver specific contrast agents are reviewed.   Liver Specific Contrast Agent such as Gadoxetic Acid and Gadobenate are increasingly used to characterize hypervascular lesions of the liver. Occasionally FNH can present with unusual imaging findings such as ring enhancing lesions with an iso or hypointense center, that are not widely recognized, leading to unneeded biopsies.   Radio-pathologic findings are reviewed with particular focus on FNH with  uncommon or atypical radiologic presentations We propose a diagnostic algorithm for assessment of atypical lesions    

FNH may present with atypical radiologic findings which present a diagnostic challenge. It is important to recognize these patterns and the underlying pathology. FNH may have unique patterns of enhancement with liver specific contrast agents that should be recognized to avoid unnecessary biopsy 

Kaur, H, Taggart, M, Shin, S, Ernst, R, Loyer, E, Aloia, T, Sharma, R, Choi, H, Atypical Imaging Presentations of Focal Nodular Hyperplasia with Radiologic Pathologic Correlation.  Radiological Society of North America 2013 Scientific Assembly and Annual Meeting, December 1 - December 6, 2013 ,Chicago IL. http://archive.rsna.org/2013/13022106.html