Focal nodular hyperplasia of the liver: diffusion and perfusion MRI characteristics

Utility of volumetric contrast‐enhanced and diffusion‐weighted MRI in differentiating between common primary hypervascular liver tumors

“…In some cases with atypical imaging findings, however, a clinically important diagnostic dilemma may exist. FNHs are innocuous, while HCAs have a potential for malignant transformation and development of such life‐threatening complications as bleeding …”

“…FNHs are innocuous, while HCAs have a potential for malignant transformation and development of such life-threatening complications as bleeding. 3 Previously it has been found that diffusion-weighted imaging (DWI), based on the intra-and extracellular diffusion of water molecule protons, is useful for the diagnosis and characterization of liver tumors. 4 The apparent diffusion coefficient (ADC) can be calculated from images obtained with different strengths of diffusion-sensitizing gradients (b values) and provides a quantifiable measure of tissue diffusion and perfusion.…”

Focal liver lesions detection: Comparison of respiratory-triggering, triggering and tracking navigator and tracking-only navigator in diffusion-weighted imaging

“…The missed FNH may be explained by the fact that the typical FNH has a cellular structure similar to that of normal hepatic parenchyma, and as a consequence there is a low lesion-to-liver contrast resolution [26,27].…”

Gd-EOB-DTPA-enhanced and diffusion-weighted magnetic resonance findings in hepatic epithelioid angiomyolipoma: A case report

“…FNH could take up Gd-EOB-DTPA and induce an equivalent or higher signal intensity compared with that of the normal liver parenchyma at the hepatobiliary phase (17). In addition, a higher signal intensity on the DWI scan and a higher ADC value is also observed for FNH compared with the normal liver parenchyma (6,7,18). Hepatic adenoma often occurs in young and middle-aged women, who usually have a long medical history of oral contraceptive use.…”