Neoplasia of gallbladder and biliary epithelium.
ABSTRACT Diagnosis of biliary neoplasia can be challenging but is essential for the appropriate clinical management of patients. Therefore, it is important to recognize the morphologic features of the biliary neoplasms to report a correct diagnosis.
(1) To discuss the differential diagnosis of dysplasia in the gallbladder and differentiate dysplasia from reactive atypia and invasive carcinoma, (2) review the histologic features of adenoma and polypoid biliary lesions, (3) highlight the differential diagnosis of adenocarcinoma in liver biopsy, and (4) discuss the differential diagnosis of atypical biliary glandular lesions.
Current English literature related to gallbladder and biliary neoplasia.
Biliary glandular neoplasms show a wide spectrum of morphology and have many mimics. Careful examination of the histologic features of these lesions and familiarity with their morphology can help to achieve the correct diagnosis.
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ABSTRACT: Because there may be interdepartmental differences in macroscopic sampling of cholecystectomy specimens, we aimed to investigate differences between the longitudinal sampling technique and our classical sampling technique in cholecystectomy specimens in which there was no obvious malignancy. Six hundred eight cholecystectomy specimens that were collected between 2011 and 2012 were included in this study. The first group included 273 specimens for which one sample was taken from each of the fundus, body, and neck regions (our classical technique). The second group included 335 specimens for which samples taken from the neck region and lengthwise from the fundus toward the neck were placed together in one cassette (longitudinal sampling). The Pearson chi-square, Fisher exact, and ANOVA tests were used and differences were considered significant at p<.05. In the statistical analysis, although gallbladders in the first group were bigger, the average length of the samples taken in the second group was greater. Inflammatory cells, pyloric metaplasia, intestinal metaplasia, low grade dysplasia, and invasive carcinoma were seen more often in the second group. In our study, the use of a longitudinal sampling technique enabled us to examine a longer mucosa and to detect more mucosal lesions than did our classical technique. Thus, longitudinal sampling can be an effective technique in detecting preinvasive lesions.The Korean Journal of Pathology 12/2013; 47(6):519-25. DOI:10.4132/KoreanJPathol.2013.47.6.519 · 0.17 Impact Factor
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ABSTRACT: Biliary tract cancers (gallbladder cancer, intra- and extra-hepatic cholangiocarcinoma, and selected periampullary cancers) accounted for 12,760 new cases of cancer in the USA in 2010. These tumors have a dismal prognosis with most patients presenting with advanced disease. Early, accurate diagnosis is essential, both for potential cure where possible and for optimal palliative therapy in all others. This review examines the currently available and emerging technologies for diagnosis and treatment of this group of diseases.Journal of Surgical Oncology 09/2012; 106(3):332-8. DOI:10.1002/jso.23028 · 2.84 Impact Factor
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ABSTRACT: INTRODUCTION: We report the frequency and age of metaplasia, dysplasia and carcinoma of the gallbladder, and seek to establish a sequence of progression of these, since several studies suggest that this is the carcinogenesis pathway. MATERIAL AND METHODS: Descriptive retrospective cross-sectional study over a period of 4 years, with an analytical component of 1,514 patients with cholelithiasis, in whom cholecystectomy were performed. RESULTS: The mean age of the sample was 46 years and 72% of patients were female. The prevalence (and mean age) of pyloric metaplasia, intestinal metaplasia, dysplasia and carcinoma was 22.6 (47), 2.1 (46), 0.2 (54) and 0.6% (63 years), respectively. There was a significant association between intestinal and pyloric metaplasia (P<.001, chi(2)) and between dysplasia and carcinoma (P<.005, Yates), but not between metaplasia and dysplasia. CONCLUSION: Improved studies should be conducted for the correct interpretation of the pathogenesis of gallbladder cancer.Cirugía Española 12/2013; 91(10):672-5. DOI:10.1016/j.ciresp.2012.10.005 · 0.89 Impact Factor