<prompt> Which of the following may be may be detected on the plain abdominal film and is a premalignant condition?Porcelain Gall bladderLimy bileAdenomyosis of gall bladderCholesterosis  <response>: Ans. a Porcelain Gall bladder Ref. Bailey and Love Surgery 24th ed., p 1106; Harrison 18thJ p 1880PORCELAIN GALLBLADDER Disease with calcification of the gall bladder is called porcelain gall bladder. Calcium salt deposition within the wall of a chronically inflamed gallbladder may be detected on the abdominal film. It is premalignant. It is an indication for prophylactic cholecystectomy.LIMEY BILE It is frequently related to multiple small stones. This lesion is not premalignant.Additional Educational points: X-ray of the gall bladder will show radiopaque gallstones in 10 of patients While about 80 of renal stones are radiopaque! Brown and black stones are pigment stones of GB. Brown more often seen in CBD, while black more common in GB. Ultrasonography and ERCP are better than CT for detecting biliary stones . 