A rare case of left-sided gallbladder (sinistraposition) is reported with review of the literature. Left-sided gallbladder is very unusual, with a frequency of 0.3% of the cases, being generally associated to situs inversus. The aim of this invesigation was to establish the association between left-sided gallbladder and right-sided round ligaments. Left-sided gallbladder is a rare anomaly and has been classified into two situations: 1) gallbladder migration to the left side, and 2) development of a second gallbladder with atrophy of the original one. Left-sided gallbladder were reported to be associated with right-sided round ligaments.