In the voluminous literature on appendicitis one finds but little particular attention paid to the peculiar characteristics and sequences of inflammation of this organ when of the retrocecal or retroperitoneal type in anatomic location. And yet anatomic observations have shown that in about 20 per cent. of.all subjects this position of the appendix is found. I have had a rather large proportion of cases of retrocecal appendicitis, and have been impressed with certain features which affect the diagnosis, prognosis and treatment to such an extent that it has seemed worthy of more attention than has usually been accorded.
In the more normal anatomic type the appendix from the base of the cecum passes more or less downward or downward and inward, and becomes an organ more or less associated with the large peritoneal fossae. In consequence, when it becomes the seat of an acute inflammation we have associated a greater