Which of the following is false: (A) Dilatation of the gallbladder with jaundice unlikely from gallstones, (B) Dilatation of the gallbladder with jaundice is due to gallstones, (C) Dilatation of a gallbladder with jaundice is due to periampullary carcinoma, (D) Dilatation of gall bladder may be present in mirizzi syndrome.
Answer is B. Courvoisier's law states that in the presence of a palpably enlarged gallbladder which is non-tender and accompanied with mild painless jaundice, the cause is unlikely to be gallstones. Chronic gallstones usually cause fibrosis of gallbladder.