Imaging of cholangiolocellular carcinoma of the liver

Yoshiki Asayama, Tsuyoshi Tajima, daisuke okamoto, Akihiro Nishie, Kousei Ishigami, Yasuhiro Ushijima, Daisuke Kakihara, Shinichi Aishima, Akinobu Taketomi, Hiroshi Honda

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Aim: Cholangiolocellular carcinoma (CoCC) is currently considered to originate from hepatic progenitor cells. The purpose of this study was to evaluate the imaging features of cholangiolocellular carcinoma of the liver. Materials and methods: Five cases of surgically resected cases of CoCC from 4 institutions were retrospectively evaluated. All of the five patients underwent contrast-enhanced dynamic CT. MRI and angio-CT including CT during arterioportography (CTAP) and CT during hepatic arteriography were performed in 3 and 2 patients, respectively. Histological evaluation was also performed and was correlated with radiographic findings. Results: On dynamic CT or MRI, the lesions presented hypervascular tumors with delayed washout in 2 cases and in the other 3 cases, the lesions showed peripheral enhancement with concentric delayed filling. On CTAP, the continued existence of portal veins or tiny spots of portal flow was identified in the tumors. Fibrous capsule or tumor necrosis was not observed. Conclusion: CoCC tumors have the dual imaging characteristics of hepatocellular carcinoma and cholangiocarcinoma. The absence of a fibrous capsule, the absence of tumor necrosis, peripheral location within the liver, and the presence of portal venous penetration within the tumor also appear to be characteristic features.

Original languageEnglish
Pages (from-to)e120-e125
JournalEuropean Journal of Radiology
Volume75
Issue number1
DOIs
Publication statusPublished - Jul 2010

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

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