THE FIRST REPORT in the literature on intussusception of the appendix was made by John McKidd in 1858.1 Unfortunately his young patient died one month after he was first seen without having the benefit of surgical treatment. The exquisite pain which this youngster must have suffered is evidenced by the fact that in addition to morphine it was necessary to administer chloroform on several occasions prior to death. Since this report, similar cases have been reported on an average of 1 each year. Rarely has a correct preoperative diagnosis been arrived at, although certain characteristics of the disease are definite enough at least to warrant its inclusion in the differential diagnosis of surgical diseases of the abdomen.
The case being presented is of interest not only because of the pathologic changes found at operation but also because of the erroneous preoperative diagnosis arrived at after careful study by a