Journal List > J Korean Soc Radiol > v.66(4) > 1087106

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Jo, Kim, Kim, Kim, Kang, Lee, Choi, and Suh: The Morphologic Features and Accuracy of Preoperative T-Staging in Resected Gallbladder Cancers
Original Article
Abdominal Radiology
Journal of the Korean Society of Radiology

Journal of the Korean Society of Radiology 2012; 66(4): 353-362.

Published online: 30 April 2012

DOI: https://doi.org/10.0000/jksr.2012.66.4.353

The Morphologic Features and Accuracy of Preoperative T-Staging in Resected Gallbladder Cancers

Sung Ehn Jo, MD1, Mi Young Kim, MD1, Jong Bum Kim, MD1, Youn Jeong Kim, MD1, Young Hye Kang, MD1, Kun Yong Lee, MD2, Suk-Jin Choi, MD3, Chang Hae Suh, MD1

1Department of Radiology, Inha University Hospital, Inha University School of Medicine, Incheon, Korea.

2Department of General Surgery, Inha University Hospital, Inha University School of Medicine, Incheon, Korea.

3Department of Pathology, Inha University Hospital, Inha University School of Medicine, Incheon, Korea.

Corresponding author: Chang Hae Suh, MD. Department of Radiology, Inha University Hospital, Inha University School of Medicine, 7-206 Sinheung-dong 3-ga, Jung-gu, Incheon 400-711, Korea. Tel. 82-31-890-2769, Fax. 82-31-890-2743, suhchae@inha.ac.kr

Received 19 December 2011       Accepted 17 February 2012

Copyright © 2012 The Korean Society of Radiology

Abstract

Purpose

To assess the morphological features and the accuracy of T staging images in surgically-proven gallbladder cancers, retrospectively.

Materials and Methods

Images of 59 surgically-proven gallbladder cancers were reviewed. Morphologic features, shape, size of tumors and the presence of stones or sludge within the images were evaluated and correlated with surgicopathologic findings.

Results

Polypoid masses were shown in 49 cases (83%). The sizes of tumors were well correlated with surgicopathologic T-stage. With ROC evaluation, the size cutoff point to differentiate the ≤ T1 versus ≥ T2 lesions was 2.4 cm. Stones or sludge were found in 25 cases (42%). The positive predictive value, negative predictive value, sensitivities, specificities, and accuracy of the ability to differentiate the ≤ T1 versus ≥ T2 lesions were 75%, 86%, 46%, 96%, 85% and those of the ability to differentiate ≤ T2 versus ≥ T3 lesions were 89%, 49%, 45%, 90%, and 61%, respectively.

Conclusion

Image analysis showed that polypoid mass and wall thickening were major findings. With this in mind, polypoid mass shows the possibility of gallbladder cancer originating from adenoma, even if the size is larger than 2 or 2.4 cm, the surgicopathologic stage could be low. Moreover, the accuracy of image based T stage on pericholecystic infiltration and wall thickening was low.

Keywords: Gallbladder Cancer, T-Stage, CT, MRI, Accuracy

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