Abstract
We evaluated parenchymal changes of the liver in 92 patients (41 peripheral types and 51 hilar types) with cholangiocarcinomas studied by bolusenhanced computed tomography (CT). In 39% of patients with the peripheral type, a wedge-shaped increased enhancement of the liver was observed peripheral to the tumor on bolus-enhanced CT. Tumor was observed in all cases. In 58.8% of patients with the hilar type, a segmental or lobar increased degree of enhancement of the liver was observed, but the tumor was demonstrated in only 58.8%. Atrophy was accompanied by areas of increased enhancement in 80% of hilar type and 25% of peripheral type. Areas of increased degree of enhancement corresponded to a wedged-shaped perfusion defect on CT during arterial portography. On magnetic resonance imaging (MRI), those lesions showed hyperintensity on T2-weighted images. Most of these changes were considered to be due to reversible hepatic parenchymal ischemia secondary to portal vein invasion by the tumor.
Original language | English |
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Pages (from-to) | 161-166 |
Number of pages | 6 |
Journal | Gastrointestinal Radiology |
Volume | 17 |
Issue number | 1 |
DOIs | |
Publication status | Published - Dec 1 1992 |
Externally published | Yes |
Keywords
- Cholangiocarcinoma, liver
- Liver atrophy
- Liver infarction
- Liver, MRI, CT
- Portal vein
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Gastroenterology