691 Gallbladder Polyp Surveillance Audit

Abstract Background Gallbladder polyps pose a clinical dilemma in surveillance owing to being very common US findings yet gallbladder malignancy infrequent diagnosis. The joint guidelines of ESGAR, EASES, EFISDS and ESGE 6, 12 24 monthly follow up scans for 6-9 mm sized or <5 with risk factors malignancy. Cholecystectomy is recommended >10mm. UK hospitals local guidelines, which our trust scans. We investigated the management audited practice DGH. Method collected analysed retrospective data US-diagnosed GB polyp cases from May2010 September2022. Polyp patients above age 18 were included. excluded CT MRI diagnosed and/or followed cases. Results A total 212 patietns selected. sizewise, 118(52%) were<5mm, 12(5.3%) were>9mm. 82(36.6%) polyps, 62(75%) up. Mean time median obtain second scan was 472days 556 days. Of these, 14 had an increase size whilst 3 increase>2mm. 17 Cholecystectomy, 1(one) diagnosis Conclusions demonstrated that correct modality chosen However, timing not within guidelines. Further teaching evaluation recommended. case can be made into unified guideline.