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Does gallbladder polyp size as measured using radiographic modalities predict pathological size in all types of polyps?

Authors Thammaroj J, Ungarreevittaya P, Jenwitheesuk K

Received 24 April 2018

Accepted for publication 24 July 2018

Published 9 October 2018 Volume 2018:11 Pages 27—30

DOI https://doi.org/10.2147/RMI.S172125

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Cristina Weinberg

Peer reviewer comments 2

Editor who approved publication: Professor Tarik Massoud


Jureerat Thammaroj,1 Piti Ungarreevittaya,2 Kriangsak Jenwitheesuk3,4

1Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; 2Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; 3Department of Surgery, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; 4Sleep Apnea Research Group, Khon Kaen University, Khon Kaen, Thailand

Background: Gallbladder polyps can be classified into two main types: cholesterol and adenoma. As polyp size is reported to be a factor suggestive for malignant polyps, this study aimed to evaluate whether radiographic size or any clinical factors are predictive of the pathological size of polyps.
Methods: This was a cross-sectional analytical study. The inclusion criteria were that patients had undergone laparoscopic cholecystectomy, had been diagnosed with gallbladder polyps using any radiographic modality, and had available pathological results. A clinical predictive model for pathological polyp size was calculated using multivariate linear regression analysis.
Results: During the study period, there were 85 patients who met the study criteria. The average polyp size according to radiographic modalities was slightly larger than average (7.2 vs 5.6 mm). The majority of polyps were cholesterol polyps (66; 77.6%). The sizes of the polyps according to radiographic imaging were significantly associated with the pathological sizes of the polyps. Age was another significant factor related to the size of polyps identified using pathological methods in the adenoma group, with a coefficient of 0.264 (P = 0.021).
Conclusions: Gallbladder polyp size as determined using radiographic modalities can predict the pathological size in both cholesterol and adenoma polyps. Some adjustments are needed, particularly in patients with adenoma polyps.

Keywords:
ultrasound, cholesterol polyp, adenoma, computed tomography, magnetic resonance cholangiopancreatography

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