“…The reason for the rarity of this condition is that the surrounding liver, kidney, and costal arch, combined with a recessed location alongside the vertebral bodies, provide a bony and visceral cushion which few other intra-abdominal structures have (Brickley, Kaplan, Freeark, and Broccolo, 1960). Such protection is occasionally inadequate, as shown by the following statistics: In a series of 5670 penetrating and non-penetrating abdominal injuries collected from the literature (Hall, Howard, Jordan, and Mikesky, 1956;Martin, Perdue, and Harrison, 1960;Wilson and Sherman, 1961) there was a total of 109 gall-bladder injuries, an incidence of 1.9 per cent. I n the present paper 5 gall-bladder injuries are presented (3 due to penetrating injuries and 2 due to non-penetrating injuries), in a personal series of 81 penetrating abdominal and abdomino-thoracic injuries and 16 closed abdominal injuries, which gives the rather high incidence of 5.2 per cent.…”