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Infantile pyloric stenosis occurs in neonates; it is acquired in the early
stages of life, it was at one time thought to be a purely congenital condition.
- the child with pyloric stenosis usually presents at 3 to 4 weeks of age.
In rare instances symptoms may be present at or soon after birth, but this
condition rarely presents for the first time in infants over the age of 12
- the classic symptom of this condition is projectile vomiting. The vomitus
does not contain bile and the child remains hungry and takes food immediately
- the neonate vomits large quantities of curdled and unpleasant smelling
milk. The vomit is forcefully ejected, justifying the adjective "projectile"
Possible features of clinical examination include:
- distended stomach and a smooth ovoid mass just below the right costal margin,
which is the hypertrophied pylorus
Last reviewed 02/2020