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  • Title: Image-Guided Percutaneous Biopsy for Pancreatic Lesions: 10-Year Experience in a Tertiary Cancer Center.
    Author: Stella SF, Van Borsel M, Markose G, Nair SB.
    Journal: Can Assoc Radiol J; 2019 May; 70(2):199-203. PubMed ID: 30894286.
    Abstract:
    INTRODUCTION: Image-guided biopsy is an important tool in the diagnosis of solid pancreatic masses. This study aims to evaluate the accuracy and complications associated with this procedure. METHODS: We conducted a retrospective cohort study of all patients referred to interventional radiology for pancreatic biopsy at our institution from July 2004-July 2015. Two radiologists independently reviewed the images, technical aspects, and clinical characteristics. RESULTS: A total of 82 patients underwent pancreatic biopsy using a combination of computed tomography (CT) and/or ultrasound guidance. Mean age was 67.8 years with 56% males. Most lesions were located in the head (63.4%), followed by the tail (19.5%), and the body (17.1%). The procedures were performed using the anterior (79.3%), lateral (7.3%), or posterior (13.4%) approach, with direct access in 85.4% of the patients and indirect access (transgastric or transhepatic) in 14.6% of cases. Core biopsies were obtained in 81.7% of cases, and fine needle aspiration was performed in 18.3% of cases. Needle size varied from 18-22 gauge (median 20 gauge). The median number of samples collected was 3 (range 1-8). A conclusive result was obtained in 82.9% of cases. There were 9 (11%) patients with minor complications: minor bleeding, pain, and inadvertent bowel puncture with no clinical repercussion. There were no deaths or major complications. CONCLUSION: Percutaneous image-guided pancreatic mass biopsy can be performed safely with excellent accuracy. Our results are comparable with endoscopic biopsy/aspiration, and percutaneous biopsy may be used as an alternative, particularly at institutions where endoscopy facilities are limited.
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