title: Calcified gallstone fissures: the reversed Mercedes Benz sign.
abstract: This article describes the occurrence of an unusual radiating pattern of calcification in the center of large radiolucent gallstones. The radiographic findings are attributed to calcium deposition within the fissures of biliary calculi.
mesh_terms: D002114:Calcinosis / Q000000981:diagnostic imaging; D002769:Cholelithiasis / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011859:Radiography