Which of the following is false
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.
Dilatation of the gallbladder with jaundice unlikely from gallstones
Dilatation of the gallbladder with jaundice is due to gallstones
Dilatation of a gallbladder with jaundice is due to periampullary carcinoma
Dilatation of gall bladder may be present in mirizzi syndrome.