Well-differentiated hepatocellular carcinoma: findings of US, CT, and MR imaging |
| |
Authors: | S Monzawa K Omata N Shimazu A Yagawa K Hosoda T Araki |
| |
Institution: | (1) Department of Radiology, Yamanashi Hospital, Asahi 3-8-31 Kofu, Yamanashi 400-0025, Japan,, JP;(2) Department of Pathology, Yamanashi Hospital, Asahi 3-8-31 Kofu, Yamanashi 400-0025, Japan,, JP;(3) Department of Surgery, Yamanashi Hospital, Asahi 3-8-31 Kofu, Yamanashi 400-0025, Japan,, JP;(4) Department of Internal Medicine, Yamanashi Hospital, Asahi 3-8-31 Kofu, Yamanashi 400-0025, Japan,, JP;(5) Department of Radiology, Yamanashi Medical University School of Medicine, Tamaho 1110, Nakakoma, Yamanashi 409-3821, Japan, JP |
| |
Abstract: | Background: To elucidate the imaging characteristics of well-differentiated hepatocellular carcinomas (HCCs) on ultrasonography (US),
computed tomography (CT), and magnetic resonance (MR) imaging.
Methods: Ultrasonograms, CTs, and MR images of 18 histopathologically proven well-differentiated HCCs in 15 patients were reviewed.
The findings of these images were correlated with histopathologic findings.
Results: On US, seven tumors were depicted as a hyperechoic area and eight as a hypoechoic area. Three tumors were not visualized.
On precontrast CT, four tumors were depicted as a low-density area, but 14 were not visualized. On conventional contrast-enhanced
CT, 12 tumors were depicted as a low-density area but six were not visualized. On T1-weighted MR images, 10 tumors had high
signal intensity and two had low signal intensity. Six tumors were not visualized. On T2-weighted MR images, five tumors had
high signal intensity and two had low signal intensity. Eleven tumors were not visualized. Tumors with fatty change and/or
clear cell formation were frequently hyperechoic on US and hyperintense on T1-weighted MR images.
Conclusions: Well-differentiated HCCs show different findings on US, CT, and MR imaging. Therefore, reliable diagnosis of well-differentiated
HCCs by these imaging techniques may be difficult.
Received: 29 April 1998/Revision accepted: 15 July 1998 |
| |
Keywords: | : Ultrasonography (US)— Computed tomography (CT)— Magnetic resonance (MR)— US liver neoplasm— CT liver neoplasm— MR liver neoplasm |
本文献已被 SpringerLink 等数据库收录! |
|