Rigler's triad doesn't include: (A) Pheumobilia, (B) Ectopic stone, (C) Cholangitis, (D) Intestinal obstruction
Answer is C. Rigler's triad is a combination of findings on an abdominal radiograph of people with gallstone ileus, a condition where a large gallstone causes bowel obstruction.it consists of 
(a) Small bowel obstruction,
(b) a gallstone outside the gallbladder
(c) air in the bile ducts(pneumobilia).