The most frequent abnormalities of the liver are irregularity in form, variation in the number of lobules, and the presence of cysts.9 A less frequent abnormality is the occurrence of an accessory liver. Most rare is an accessory gall bladder within the accessory liver. Few such anomalies have been reported.
Rogues and Solier,11 and Hardisty, Kearney, and Brooks6 presented individual cases in which deformity of the right diaphragm was found on routine x-ray examination of the chest. In each case an accessory lobe arising from the superior surface of the right lobe of the liver was encountered in the chest cavity at operation. Friedman, Solis-Cohen, and Levine3 reported the same type of anomaly in a one-year-old girl and pointed out the diagnostic importance of pneumoperitoneum. A case of accessory lobe arising from the right lower lobe of the liver was reported by Fraser.2 The significance