Radiology, Vol 196, 465-469, Copyright © 1995 by Radiological Society of North America

ARTICLES

Hepatic hemangioma: findings with two-phase CT

K Hanafusa, I Ohashi, Y Himeno, S Suzuki and H Shibuya
Department of Radiology, Tokyo Medical and Dental University, School of Medicine, Japan.

PURPOSE: To characterize the appearance of hemagiomas at two-phase dynamic incremental computed tomography (CT) and to determine the cause of contrast material enhancement of adjacent parenchyma in the first series. MATERIALS AND METHODS: Contrast-enhanced CT images of 51 hemangiomas in 20 patients were reviewed. Enhancement patterns of hemangiomas in the first series were classified as homogeneous high, peripheral high, and low attenuation; in the second series, as homogeneous high, peripheral high, iso-, and low attenuation. Correlations between arterioportal shunts and early parenchymal enhancement were evaluated in 45 hemangiomas in the 17 patients who underwent angiography. RESULTS: Thirty-two hemangiomas progressively became enhanced. Four had low and eight had homogeneous high attenuation in both series. Seven changed from homogeneous high to isoattenuation. Early parenchymal enhancement was well correlated with presence of arterioportal shunt. CONCLUSION: Low-attenuation hemangiomas and those that changed from homogeneous high to isoattenuation are atypical and difficult to differentiate from other neoplasms. Most early parenchymal enhancement is caused by associated arterioportal shunts.

This article has been cited by other articles:

				J. H. Byun, T. K. Kim, C. W. Lee, J. K. Lee, A. Y. Kim, P. N. Kim, H. K. Ha, and M.-G. Lee Arterioportal Shunt: Prevalence in Small Hemangiomas versus That in Hepatocellular Carcinomas 3 cm or Smaller at Two-Phase Helical CT Radiology, August 1, 2004; 232(2): 354 - 360. [Abstract] [Full Text] [PDF]

				M. Coumbaras, D. Wendum, L. Monnier-Cholley, H. Dahan, J. M. Tubiana, and L. Arrive CT and MR Imaging Features of Pathologically Proven Atypical Giant Hemangiomas of the Liver Am. J. Roentgenol., December 1, 2002; 179(6): 1457 - 1463. [Full Text] [PDF]

				T. Kim, M. P. Federle, R. L. Baron, M. S. Peterson, and Y. Kawamori Discrimination of Small Hepatic Hemangiomas from Hypervascular Malignant Tumors Smaller than 3 cm with Three-Phase Helical CT Radiology, June 1, 2001; 219(3): 699 - 706. [Abstract] [Full Text] [PDF]

				K. W. Kim, T. K. Kim, J. K. Han, A. Y. Kim, H. J. Lee, and B. I. Choi Hepatic Hemangiomas with Arterioportal Shunt: Findings at Two-Phase CT Radiology, June 1, 2001; 219(3): 707 - 711. [Abstract] [Full Text] [PDF]

				S. Quiroga, C. Sebastia, E. Pallisa, E. Castella, M. Perez-Lafuente, and A. Alvarez-Castells Improved Diagnosis of Hepatic Perfusion Disorders: Value of Hepatic Arterial Phase Imaging during Helical CT RadioGraphics, January 1, 2001; 21(1): 65 - 81. [Abstract] [Full Text] [PDF]

				J.-S. Yu, K. W. Kim, M.-G. Jeong, J. T. Lee, and H. S. Yoo Nontumorous Hepatic Arterial-Portal Venous Shunts: MR Imaging Findings Radiology, December 1, 2000; 217(3): 750 - 756. [Abstract] [Full Text]

				M.-G. Jeong, J.-S. Yu, and K. W. Kim Hepatic Cavernous Hemangioma: Temporal Peritumoral Enhancement during Multiphase Dynamic MR Imaging Radiology, September 1, 2000; 216(3): 692 - 697. [Abstract] [Full Text]

				G. T. Sica, H. Ji, and P. R. Ros CT and MR Imaging of Hepatic Metastases Am. J. Roentgenol., March 1, 2000; 174(3): 691 - 698. [Full Text] [PDF]

				V. Vilgrain, L. Boulos, M.-P. Vullierme, A. Denys, B. Terris, and Y. Menu Imaging of Atypical Hemangiomas of the Liver with Pathologic Correlation RadioGraphics, March 1, 2000; 20(2): 379 - 397. [Abstract] [Full Text] [PDF]

				M. J. Lane, R. B. Jeffrey Jr., and D. S. Katz Spontaneous Intrahepatic Vascular Shunts Am. J. Roentgenol., January 1, 2000; 174(1): 125 - 131. [Full Text] [PDF]

				G. Sommer, E. W. Olcott, and L. Tai Liver Tumors: Utility of Characterization at Dual-Frequency US Radiology, June 1, 1999; 211(3): 629 - 636. [Abstract] [Full Text]