Opening the June Pediatrics, I noted another article reviewing the clinical and pathologic picture of absence of the abdominal muscles. As this particular review is so current and complete, it would seem repetitious for me to report the several cases I have had. However, the etiology from a genetic standpoint seems most important in the patients here to be reported because this particular mother has had three children born either with complete or partial absence of the muscles of the abdominal wall itself.