2. Introduction
► a condition characterised by
hypertrophy of muscular layers of
the pylorus
► resulting in narrowing of pylorus
causing gastric outlet obstruction
► First described by Hirschsprungs in
1888
5. Diagnosis
► History –
► non bilious projectile vomiTng between 3 to 8 weeks of age
► Clinical examination
► Visible peristalsis
► Palpable pylorus like an olive