"It is most often an incidental finding and usually requires no treatment. It may be found more often in chronically inflamed gallbladders (which are at higher risk for carcinoma), but it is not a premalignant lesion in itself 6."
"Rokitansky-Aschoff sinuses of sufficient size can be visualised; a CT rosary sign has been described, formed by enhancing epithelium within intramural diverticula surrounded by the relatively unenhanced hypertrophied gallbladder muscularis"
"Phrygian cap"
"absent extra-gallbladder infiltration 8"
Expected headings
"Signal characteristics"
"Adenomyomatosis is relatively common, found in ~9% of all cholecystectomy specimens 6. It is typically seen in patients in their 5th decade. The incidence increases with age, presumably the result of protracted inflammation (see below). There is a female predilection (M:F=1:3)."
"Adenomyomatosis is one of the hyperplastic cholecystoses. There is hyperplasia of the wall with the formation of Rokitansky-Aschoff sinuses (intramural diverticula lined by mucosal epithelium) penetrating into the muscular wall of the gallbladder, with or without gallbladder wall thickening. Cholesterol accumulating in the Rokitansky-Aschoff sinuses becomes increasingly concentrated leading to crystal precipitation and calcification 10."
"Adenomyomatosis is one of the hyperplastic cholecystoses. There is hyperplasia of the wall with the formation of Rokitansky-Aschoff sinuses (intramural diverticula lined by mucosal epithelium) penetrating into the muscular wall of the gallbladder, with or without gallbladder wall thickening. Cholesterol accumulating in the Rokitansky-Aschoff sinuses becomes increasingly concentrated leading to crystal precipitation and calcification 10."
"Rokitansky-Aschoff sinuses of sufficient size can be visualised; a CT rosary sign has been described, formed by enhancing epithelium within intramural diverticula surrounded by the relatively unenhanced hypertrophied gallbladder muscularis"