Fig. 2From: Laparoscopic cholecystectomy after endoscopic trans-papillary gallbladder stenting for acute cholecystitis: a pilot study of surgical feasibilityEndoscopic retrograde cholangiopancreatography (ERCP) catheter was inserted into the cystic duct (a). The arrowhead shows that the 7 Fr 15-cm double pigtail catheter was inserted into the gallbladder for drainage (b)Back to article page