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Related Experiment Videos

Peripheral cholangiocarcinoma: sonographic evaluation.

B Wibulpolprasert1, T Dhiensiri

  • 1Department of Radiology, Khon Kaen Regional Hospital, Thailand.

Journal of Clinical Ultrasound : JCU
|June 1, 1992
PubMed
Summary
This summary is machine-generated.

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Tropical and geographical medicine·1991

This study reviewed 107 patients with intrahepatic cholangiocarcinoma (CC). Most tumors were nodular, with varied echogenicity and common peripheral hypoechoic rims, but ultrasonography often missed extrahepatic extension.

Area of Science:

  • Hepatobiliary Medicine
  • Diagnostic Imaging
  • Oncology

Background:

  • Cholangiocarcinoma (CC) is a primary liver cancer with diverse imaging presentations.
  • Accurate preoperative assessment of intrahepatic CC is crucial for treatment planning.

Purpose of the Study:

  • To retrospectively analyze the sonographic features of intrahepatic cholangiocarcinoma.
  • To correlate imaging findings with pathological and surgical outcomes.

Main Methods:

  • Retrospective review of 107 patients with histologically confirmed intrahepatic CC.
  • Analysis of sonographic patterns, echogenicity, presence of hypoechoic rim, bile duct dilatation, and extrahepatic extension.
  • Comparison of ultrasonography findings with operative data.

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Main Results:

  • Nodular (101) and infiltrative (6) patterns were identified. Solitary masses were more common (33/101).
  • Tumor echogenicity varied: hyperechoic (56), hypoechoic (15), isoechoic (10), mixed-echoic (20).
  • Peripheral hypoechoic rim (34.7%) and bile duct dilatation (30.8%) were observed. Ultrasonography detected extrahepatic extension in only 30.8%, compared to 88.5% intraoperatively. Small lesions (<3 cm) frequently showed extrahepatic extension.

Conclusions:

  • Intrahepatic cholangiocarcinoma exhibits varied sonographic appearances, with nodular patterns predominating.
  • Ultrasonography has limitations in detecting extrahepatic extension, particularly in smaller tumors.
  • Further investigation into advanced imaging techniques may improve preoperative staging of intrahepatic CC.