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Abdominal Imaging

, Volume 32, Issue 5, pp 644–651 | Cite as

Biliary cystic intraductal papillary mucinous tumor and cystadenoma/cystadenocarcinoma: differentiation by CT

  • Jae Hoon LimEmail author
  • Kee-Taek Jang
  • Hyunchul Rhim
  • Young Sun Kim
  • Kyu Taek Lee
  • Sung Ho Choi
Article

Abstract

Purpose

To identify differential findings of biliary cystic intraductal papillary mucinous tumor (IPMT) and biliary cystadenoma/cystadenocarcinoma on CT images.

Materials and methods

Records of 7 patients with biliary cystic IPMT and 17 patients with biliary cystadenoma/cystadenocarcinoma were accessed. A pathologist reviewed gross morphologic and microscopic findings and confirmed the diagnosis. Two radiologists who were blind to the pathologic diagnosis reviewed CT images regarding size of cystic mass, mural nodule, septa, calcification, dilatation of the proximal, and distal bile ducts to the tumor, and the results were analyzed using multivariate analysis.

Results

Mural nodule and dilatation of the bile ducts distal to the cystic tumor were more commonly seen in patients with cystic IPMT than in patients with biliary cystadenoma/cystadenocarcinoma and these are statistically significant, the P values being 0.029 and 0.016, respectively. Size of the cystic tumor, presence of septa, calcification, and dilatation of the bile duct proximal to the cystic tumor were not statistically different.

Conclusion

Biliary cystic IPMT could be differentiated from biliary cystadenoma/cystadenocarcinoma on CT images based on the presence of mural nodules and dilatation of the bile ducts distal to the cystic tumor.

Keywords

Bile ducts Cysts CT MR Neoplasms Stenosis or obstruction US 

Notes

Acknowledgements

Authors wish to thank Dr. John Roberts for his editorial assistance and Young Joo Moon for her assistance in manuscript preparation.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Jae Hoon Lim
    • 1
    Email author
  • Kee-Taek Jang
    • 2
  • Hyunchul Rhim
    • 1
  • Young Sun Kim
    • 1
  • Kyu Taek Lee
    • 3
  • Sung Ho Choi
    • 4
  1. 1.Department of RadiologySamsung Medical Center, Sungkyunkwan University School of MedicineSeoulSouth Korea
  2. 2.Department of PathologySamsung Medical Center, Sungkyunkwan University School of MedicineSeoulSouth Korea
  3. 3.Department of MedicineSamsung Medical Center, Sungkyunkwan University School of MedicineSeoulSouth Korea
  4. 4.Department of SurgerySamsung Medical Center, Sungkyunkwan University School of MedicineSeoulSouth Korea

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