Sir Benjamin C. Brodie,20 in 1846, described seeing a young lady with a cystic tumor of the upper right abdomen which disappeared after aspiration of 2 pt. of clear, watery fluid. This case has often been referred to in the literature as that of one of the earliest solitary cysts of the liver reported. Present-day diagnostic requirements would make it at least open to suspicion as a proved instance of solitary nonparasitic cyst of the liver. As time has passed, numerous reports of this entity have appeared, and it has become of greater interest. Recent technical advances in surgery of the liver should make such cysts easier to extirpate. Wikle and Charache135 state that the earliest reported case was that of Brisbane, on April 1, 1856, from postmortem findings. Review of this case leads me to believe that it was one of polycystic disease rather than a solitary