THE INCIDENCE of regional ileitis in the adolescent as reflected in medical literature is misleading since the clinical and roentgenological manifestations differ appreciably from the adult type. Our experience in the general practice of radiology has emphasized the need for an alert awareness of its prevalence since recognition of the subtle roentgenological and clinical findings have aided us in the diagnosis of this entity in eight cases within an 18-month period. Two youngsters were 9 years old, three were 13, one was 14, and two were 16 years of age. Since the earliest description of this disease by Crohn et al1 in 1932, the literature has been replete with accumulative reports reflecting an increased frequency of regional ileitis in the 20 to 30 age period. These statistical charts, however, only emphasize the period of diagnosis and not the earliest stage of inception. A careful search of the history in the majority of cases will disclose symptoms