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  • Title: Histopathological changes in gallbladder mucosa in cholelithiasis: correlation with chemical composition of gallstones.
    Author: Baig SJ, Biswas S, Das S, Basu K, Chattopadhyay G.
    Journal: Trop Gastroenterol; 2002; 23(1):25-7. PubMed ID: 12170916.
    Abstract:
    BACKGROUND: Cholelithiasis produces diverse histopathological changes in gallbladder mucosa namely acute inflammation, chronic inflammation, glandular hyperplasia, granulomatous inflammation, cholesterosis, dysplasia, and carcinoma. Gallstones have different chemical composition. They may be cholesterol, pigment or mixed stones. The aim of this prospective study was to see if any correlation existed between the chemistry of gallstones and any particular histopathologic picture. METHODS: Between May 1997 and December 1997 we diagnosed and operated on 40 patients with cholelithiasis. Diagnosis was established by ultrasound. After operation gallstones were sent for chemical analysis to detect presence of calcium bilirubinate and cholesterol. Serial sections of gallbladder from fundus to neck were stained by haematoxylin and eosin, and studied. RESULTS: Out of 40 patients (n = 40) 29 were females and 11 were males. The mean age of our patients was 38 +/- 21 years with a median of 40 years. Median age of males was 48 years compared to 38 years for females. Twenty-eight patients had mixed stones, 8 had pigment stones and 4 had cholesterol stones. Out of 28 patients with mixed stones 14 had histological picture of chronic cholecystitis, 8 had granulomatous cholecystitis, 4 had adenomatous hyperplasia, 1 had dysplasia and 1 had carcinoma. All 8 patients having pigment gallstones had chronic cholecystitis. Out of 4 patients with cholesterol gallstones, 2 had chronic cholecystitis, 1 had adenomatous hyperplasia and 1 had cholesterosis. Gallbladder having pigment stones were devoid of Rokitansky-Aschoff sinuses. CONCLUSION: Adenomatous hyperplasia and Rokitansky-Aschoff sinuses were not seen in gallbladder containing pigment stones but seen in gallbladders containing mixed and cholesterol stones in our study. Cholesterol may be a more potent stimulus for glandular hyperplasia or glandular hyperplasia may responsible for formation of cholesterol rich stones.
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