PURPOSE: To describe the magnetic resonance (MR) imaging features of hepatic adenoma and correlate these findings with histopathologic findings. MATERIALS AND METHODS: MR findings of 51 pathologically proved hepatic adenomas in 29 consecutive patients were retrospectively analyzed. T1- and T2-weighted spin-echo (SE) images were obtained in all patients, and contrast material-enhanced MR images were obtained in 16 patients. RESULTS: At pathologic analysis, a peripheral rim, observed in 16 (31%) hepatic adenomas, corresponded to pseudocapsule, and tumor heterogeneity, observed in 26 (51%) lesions, corresponded to hemorrhagic necrosis and peliosis. Hyperintensity on T1-weighted SE images was observed in 30 (59%) adenomas; 10 (67%) of 15 hepatic adenomas were hyperintense on contrast-enhanced gradient-echo images, and 13 (45%) of 29 were hyperintense on delayed contrast-enhanced T1-weighted SE images. CONCLUSION: Presence of a peripheral rim, heterogeneity, and hyperintensity are common features of hepatic adenoma.
PURPOSE: To describe the magnetic resonance (MR) imaging features of hepatic adenoma and correlate these findings with histopathologic findings. MATERIALS AND METHODS: MR findings of 51 pathologically proved hepatic adenomas in 29 consecutive patients were retrospectively analyzed. T1- and T2-weighted spin-echo (SE) images were obtained in all patients, and contrast material-enhanced MR images were obtained in 16 patients. RESULTS: At pathologic analysis, a peripheral rim, observed in 16 (31%) hepatic adenomas, corresponded to pseudocapsule, and tumor heterogeneity, observed in 26 (51%) lesions, corresponded to hemorrhagic necrosis and peliosis. Hyperintensity on T1-weighted SE images was observed in 30 (59%) adenomas; 10 (67%) of 15 hepatic adenomas were hyperintense on contrast-enhanced gradient-echo images, and 13 (45%) of 29 were hyperintense on delayed contrast-enhanced T1-weighted SE images. CONCLUSION: Presence of a peripheral rim, heterogeneity, and hyperintensity are common features of hepatic adenoma.
Authors: Tiffany P Hennedige; James Thomas Patrick Decourcy Hallinan; Fiona P Leung; Lynette Li San Teo; Sridhar Iyer; Gang Wang; Stephen Chang; Krishna Kumar Madhavan; Aileen Wee; Sudhakar K Venkatesh Journal: Eur Radiol Date: 2015-06-02 Impact factor: 5.315
Authors: N Shao; A Pandey; M A Ghasabeh; P Khoshpouri; P Pandey; F N Varzaneh; M Zarghampour; D Fouladi; T M Pawlik; R A Anders; I R Kamel Journal: Clin Radiol Date: 2018-07-18 Impact factor: 2.350
Authors: Liliana Chiorean; Xin-Wu Cui; Andrea Tannapfel; Doris Franke; Martin Stenzel; Wojciech Kosiak; Dagmar Schreiber-Dietrich; Jörg Jüngert; Jian-Min Chang; Christoph F Dietrich Journal: World J Gastroenterol Date: 2015-07-28 Impact factor: 5.742