Congenital Double Gall-bladder. A Review and Report of Two Cases

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Abstract
Contrast examination must demonstrate 2 cystic ducts before a definite radiological diagnosis of this rare condition may be made. Some features such as 2 parallel rows of gallstones, or 2 separate loculi seen at contrast examination, are suggestive, but not diagnostic findings. The literature is reviewed and reasons for the difficulty in obtaining an accurate estimate of the number of recorded cases is given. There are unlikely to be more than 150 proved cases in the world literature, and that of these only 15 cases have been demonstrated radiologically and subsequently proved at operation. The evidence indicates that such gall-bladders are more prone to disease than normal ones, a fact suggested by other studies; associated pathology recorded in the literature is reviewed.