Abstract
The aim of this chapter is to define diagnosis and treatment of benign lesions of the bile ducts and the gallbladder.
Benign tumors of the bile ducts are uncommon clinical entities, and therefore, most published papers describe only case reports. Nevertheless, these entities, together with pseudotumors, should be considered in the differential diagnosis of painless jaundice patients. In recent years, particular attention has been paid in the study of two bile duct lesions: intraductal papillary neoplasm and mucinous cystic neoplasms.
Gallbladder (GB) tumors are a rare pathology that occurs in 3–7 % of adult population, but with the frequent use of abdominal US, detection of small polypoid lesion of the gallbladder has been increasing considerably in the last years. Most lesions of the GB are benign and are divided into polypoid lesions and atypical thickening of the gallbladder wall with an uncertain diagnosis, which can mimic malignant lesions.
Polyps of the GB include neoplastic and non-neoplastic lesions, and the majority of them are represented by cholesterol polyps (CPs) that have a prevalence of 60–90 %. CPs are composed by accumulation of triglycerides and cholesterol esters within macrophages in the GB wall (without a real cellular proliferation) forming a polypoid proliferation usually very small (1–2 mm) and that however do not exceed 10 mm. Clinically asymptomatic in most of cases, this lesion is usually an occasional detection at US analysis.
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Massani, M., Bassi, N., Nistri, C., Pauletti, B. (2015). Benign Tumors of Bile Ducts and Gallbladder. In: Aldrighetti, L., Cetta, F., Ferla, G. (eds) Benign Tumors of the Liver. Springer, Cham. https://doi.org/10.1007/978-3-319-12985-3_15
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DOI: https://doi.org/10.1007/978-3-319-12985-3_15
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