Intrahepatic Peripheral Cholangiocarcinoma:Comparative Study on Imaging Findings and Pathology
- VernacularTitle:周围型肝内胆管细胞癌的影像学表现与病理对照分析
- Author:
Yunping XIAO
;
Enhua XIAO
;
Bin LIANG
;
Leiqi TIAN
- Publication Type:Journal Article
- Keywords:
liver;
cholangiocarcinoma;
ultrasonics;
tomography ,X-ray computed;
MRI;
DSA
- From:
Journal of Practical Radiology
2001;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the imaging findings and its pathologic basis of intrahepatic peripheral cholangiocarcinoma(IHPCC).Methods 25 patients with pathologically proven IHPCC were reviewed retrospectively.B-ultrasonic scanning (BUS) was performed in allpatients.CT(including conventional unenhanced and enhanced scan) was done in 21 patients.11 patients received MRI with dynamicscannings.9 patients underwent digital subtraction angiography(DSA).Results 15 patients were hypoecho and 10 patients were brieflyhyperecho or hyperecho in BUS, homogeneous or heterogeneous. On unenhanced CT, the lesions were of low density with ill-definedborder. The lesions were low intensity on T1WI and moderately high intensity with low intensity in central area on T2WI . Dynamic CT and MRI showed gradually enhancement from the periphery toward the center of the lesion in most patients. Focal dilatation and calculus of the intrahepatic bile ducts around the tumor could be seen and retraction of liver capsule could also be seen in imaging appearance of IHPCC. On selective DSA ,the lesions were resemble to the tumors with rare blood vessels ,on superselective DSA, tumor vascular plexus were tiny and like “flocculus” in arterial period, obvious staining with ill-defined during parenchymal phase in 9 patients. Pathologically,tumor vessels were rare, these were plenty of interstitial fibrous tissue between tumor cells. Conclusion The imaging features of intrahepatic peripheral cholangiocarcinoma are of certain characteristic.
