Atsushi Nishimura1, Yoshio Shirai, Katsuyoshi Hatakeyama. 1. Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, 951-8510, Niigata, Japan.
Abstract
BACKGROUND/ PURPOSE: The aim of the present study was to clarify the association between adenomyomatosis of the gallbladder and cholecystolithiasis. METHODS: A cholecystectomy was performed for cholelithiasis or various other conditions in 1099 patients, of whom 608 had cholecystolithiasis. Adenomyomatosis of the gallbladder was classified as one of three variants: segmental, fundal, and diffuse. Segmental adenomyomatosis has an annular stricture dividing the gallbladder lumen into the "neck compartment" and the "fundal compartment". Bile lipid analysis was performed in 8 patients with segmental adenomyomatosis. RESULTS: Adenomyomatosis of the gallbladder was observed in 156 patients (14.2%), of whom 99 had segmental adenomyomatosis, 54 had fundal adenomyomatosis, and 3 had diffuse adenomyomatosis. The prevalence of cholecystolithiasis was higher in patients with segmental adenomyomatosis (88.9%) than in those without adenomyomatosis (52.3%; P < 0.001). Gallstones were detected earlier in patients with segmental adenomyomatosis than in those without ( P < 0.001) and were located predominantly in the fundal compartment. Bile in the fundal compartment had lower concentrations of total bile acids ( P = 0.012), with an increased cholesterol saturation index ( P = 0.012), compared to bile in the neck compartment. CONCLUSIONS: Segmental adenomyomatosis is a condition predisposing to cholecystolithiasis, probably due to the lithogenic environment in the fundal compartment. Fundal or diffuse adenomyomatosis appears to be unrelated to cholecystolithiasis.
BACKGROUND/ PURPOSE: The aim of the present study was to clarify the association between adenomyomatosis of the gallbladder and cholecystolithiasis. METHODS: A cholecystectomy was performed for cholelithiasis or various other conditions in 1099 patients, of whom 608 had cholecystolithiasis. Adenomyomatosis of the gallbladder was classified as one of three variants: segmental, fundal, and diffuse. Segmental adenomyomatosis has an annular stricture dividing the gallbladder lumen into the "neck compartment" and the "fundal compartment". Bile lipid analysis was performed in 8 patients with segmental adenomyomatosis. RESULTS:Adenomyomatosis of the gallbladder was observed in 156 patients (14.2%), of whom 99 had segmental adenomyomatosis, 54 had fundal adenomyomatosis, and 3 had diffuse adenomyomatosis. The prevalence of cholecystolithiasis was higher in patients with segmental adenomyomatosis (88.9%) than in those without adenomyomatosis (52.3%; P < 0.001). Gallstones were detected earlier in patients with segmental adenomyomatosis than in those without ( P < 0.001) and were located predominantly in the fundal compartment. Bile in the fundal compartment had lower concentrations of total bile acids ( P = 0.012), with an increased cholesterol saturation index ( P = 0.012), compared to bile in the neck compartment. CONCLUSIONS:Segmental adenomyomatosis is a condition predisposing to cholecystolithiasis, probably due to the lithogenic environment in the fundal compartment. Fundal or diffuse adenomyomatosis appears to be unrelated to cholecystolithiasis.
Authors: Abdulrahman Y Hammad; John T Miura; Kiran K Turaga; Fabian M Johnston; Mark D Hohenwalter; T Clark Gamblin Journal: HPB (Oxford) Date: 2016-01-06 Impact factor: 3.647