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Fig. 2. —Graph shows lesion signal intensity change on T2-weighted images after ferumoxides enhancement. Note that focal nodular hyperplasia shows significant reduction in signal intensity. Mets = metastases, HCC = hepatocellular carcinoma, Chol = cholangiocarcinoma, Hem = hemangioma, FNH = focal nodular hyperplasia, HCA = hepatocellular adenoma.