Biliary complications include cholecystitis and biliary strictures. It is also a rare cause of ileus, pancreatitis, cholecystitis, and cholangitis.. It is also a rare cause of ileus, pancreatitis, cholecystitis, and cholangitis. The symptoms may mimic those of acute appendicitis, diverticulitis, or cholecystitis. Patients that have gallstones and biliary colic are at increased risk for complications, including cholecystitis. However, no clinical studies suggest that morphine can aggravate or cause pancreatitis or cholecystitis. Ebert suffered from gallstones and frequent bouts of cholecystitis. However, vomiting does not relieve the pain brought on by pancreatitis or cholecystitis. In acalculous cholecystitis, no stone is in the biliary ducts. The greatest risk factor for cholecystitis is gallstones. The RUQ may be painful or tender in hepatitis, cholecystitis, and peptic ulcer. If the stone blocks the gallbladder, inflammation known as cholecystitis may result. Other conditions that can produce similar symptoms include pericarditis, heart attack, cholecystitis, and pneumothorax. Patients are more likely to have yellowing of the skin (jaundice) than in calculous cholecystitis. Conservative management for acute cholecystitis involves treating the infection without surgery.