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Journal of Computer Assisted Tomography:
doi: 10.1097/RCT.0b013e31828b683b
Abdominal Imaging

Discrepancy Between Preoperative Imaging and Surgical Findings in Patients With Advanced Ovarian Cancer: A Study of Initial False-Negative Lesions

Ko, Seok Min MD*; Jung, Dae Chul MD*; Oh, Young Taik MD*; Kim, Sun Ho MD; Kang, Sokbom MD

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Abstract

Objective

The objective of this study was to determine the patterns of erroneous interpretation of preoperative computed tomography (CT) for detection of peritoneal lesions in advanced ovarian cancer.

Methods

Between 2007 and 2011, 148 patients with International Federation of Gynecology and Obstetrics stage IIIC-IV ovarian cancer, who underwent multi–detector-row CT before primary cytoreduction, were enrolled. We reviewed the preoperative CT and compared the findings with the surgical findings. For the discrepant cases, false-negative cases were reevaluated after revealing of surgical findings and were categorized as either absence or presence of lesion (missed case). We performed region-based comparisons according to predefined peritoneal lesion locations.

Results

Sixty-eight false-negative cases were identified, of which 43 were revealed to be initially missed cases. The most common locations were found to be the small-bowel mesentery (21%), subdiaphragmatic space (19%), and porta hepatis (16%).

Conclusions

The missed peritoneal implants commonly resided in the same sites of preoperative imaging criteria that could predict suboptimal primary cytoreduction.

Copyright © 2013 by Lippincott Williams & Wilkins

 

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