title: A crescent-shaped collection of residual cholecystographic contrast material: a new sign of benign gastric ulcer?
mesh_terms: D000368:Aged; D002765:Cholecystography; D003287:Contrast Media; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging; D013276:Stomach Ulcer / Q000000981:diagnostic imaging*; D013679:Technology, Radiologic
chemical_list: D003287:Contrast Media