Gallbladder Polyp: Review and Proposed Algorithm for Management.

Area of Science:

• Gastroenterology and Hepatobiliary Surgery

Background:

• Gallbladder polyps are common incidental findings during ultrasonography.
• While most polyps are benign cholesterol polyps, a subset can be malignant.
• Distinguishing between benign and malignant polyps is essential for appropriate patient management.

Purpose of the Study:

• To outline the diagnostic characteristics suggestive of malignancy in gallbladder polyps.
• To identify patient demographics and associated conditions linked to a higher incidence of gallbladder polyp malignancy.
• To discuss the role of various imaging modalities in surgical decision-making for gallbladder polyps.

Main Methods:

• Review of clinical characteristics and imaging findings associated with gallbladder polyps.
• Analysis of risk factors including patient ethnicity, age, and comorbidities like gallstones.
• Evaluation of imaging techniques such as ultrasonography, CT scan, and endosonography.

Main Results:

• Malignancy indicators include polyp size >10 mm, solitary lesions, sessile morphology, and wall thickening.
• Increased risk observed in Indian ethnicity, age >50 years, and presence of primary sclerosing cholangitis or gallstones.
• Pre-operative tissue diagnosis is challenging, necessitating reliance on imaging and follow-up.

Conclusions:

• Accurate characterization of gallbladder polyps using imaging is vital for surgical planning.
• Risk stratification based on polyp features and patient factors aids in differentiating benign from malignant lesions.
• A multidisciplinary approach integrating imaging and clinical data is key to optimizing management and avoiding overtreatment.