Gallbladder Polyps: A Literature Review of Basic Concepts, Diagnosis and Treatment Options
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Abstract
Gallbladder polyps (GP) are projections of the mucosa toward the light, most of them are benign caused by cholesterol deposits, focal adenomatosis, or hyperplastic lesions secondary to a local infection. It has an estimated prevalence of 5% of the world population. Cholesterol polyps are usually formed by an asymptomatic process, rarely obstructive jaundice or cholangitis due to the blockage of distal bile ducts by detached fragments of polyps. A small number of patients may be symptomatic; cholesterolosis and adenomatosis can also cause chronic dyspeptic abdominal pain, nausea, and vomiting. Ultrasound is the main imaging modality to diagnose polyps of the gallbladder, endoscopic ultrasonography can be a useful tool in patients with clinical pictures suggestive of vesicular pathology and non-invasive imaging studies, and inconclusive. In a patient aged less than 50 years with GP, the likelihood of malignancy is minimal and does not require cholecystectomy. However, those with a size greater than or equal to 10 mm should be resected by cholecystectomy for high risk of malignancy, and those with a size less than 10 mm should be submitted to ultrasound monitoring, observing the risk characteristics during follow-up, to provide timely treatment.
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