Gallstones are aggregation of hard substance that forms inside gallbladder when there is disequilibrium in the constitution of bile such as more cholesterol, accumulated amount of pigment material and/or decreased amount of bile acid. Gallstones may also result from dysfunction of gallbladder contraction Gallstones may occur as one large stone or hundreds of tiny stones. Cholesterol and calcium bilirubinate are the two main substances involved in gallstone formation. Gallstones derived from bile consist of mixture of cholesterol, bilirubin with or without calcium. Based on their chemical composition, gallstones found in the gallbladder are classified as cholesterol, pigmented, or mixed stones. Gallstones can be mostly white, yellow, brown, black and green colored. Approximately 80% of the gallstones are cholesterol gallstones, which chiefly consist of cholesterol plus bile salts. Endoscopic retrograde cholangiopancreatography (ERCP) is a technique that uses a combination of luminal endoscopy and fluoroscopic imaging to diagnose and treat conditions associated with the pancreatobiliary system. The endoscopic portion of the examination uses a side-viewing duodenoscope that is passed through the esophagus and stomach into the second portion of the duodenum. Many studies have supported Immediate laparoscopic cholecystectomy post-ERCP. On the same day, LC postERCP and simultaneous laparoendoscopic management are also being popularized. We too suggest that LC performed Immediate within 24-hour post-ERCP is beneficial in terms of surgery duration, hospital stay and operative difficulty

Laparoscopic Cholecystectomy, Endoscopic Retrograde Cholangio-pancreatography