The mucosal pattern of the gall bladder ("areae cholecysticae").
During endoscopic retrograde cholangiopancreatography (ERCP) the mucosal fold pattern of the gall bladder can be seen if radiographs are made before the contrast medium has mixed with the bile. These appearances are demonstrated by studies both in vivo and in vitro.
D002760:Cholangiopancreatography, Endoscopic Retrograde; D003937:Diagnosis, Differential; D005705:Gallbladder Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D009092:Mucous Membrane / Q000000981:diagnostic imaging