Idiopathic Hypertrophic Pyloric Stenosis (IHPS) has been associated with anomalies (6 to 12.1%) 1,2but has a rare
association with Congenital Diaphragmatic Hernia (CDH). The association can be genetic, though it is usually sporadic.
We present a case report of a 1 month child with non bilious projectile vomiting with failure to thrive. Radiological
evaluation showed IHPS with left CDH which was surgically corrected.
Presentation of IHPS may be atypical when associated with CDH. Early recognition of concomitant anomalies will reduce
morbidity in these patients