[Physiopathology of hypertrophic stenosis of the pylorus: a proposal].

The aim of this report is finding a physiopathologic explanation for the Infantile Hypertrophic Pyloric Stenosis. We studied two groups: The group one were children with infantile hypertrophic pyloric stenosis (n = 43) and the group two were infants who died at one month old due to a non-related cause. We studied the pylorus in both groups, took biopsies and found neurological and muscular lesions with muscular hypertrophy and degeneration of the myenteric plexus of Auerbach. We suggest the diagram of self-maintenance of the lesions.