Pyloric stenosis physical examination

	Pyloric stenosis Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Overview

Palpation of the abdomen may reveal a mass in the epigastrium. This mass, which consists of the enlarged pylorus, is referred to as the 'olive,' and is sometimes evident after the infant is given formula to drink. It is an elusive diagnostic skill requiring much patience and experience. There are often palpable (or even visible) peristaltic waves due to stomach trying to force its contents past the narrowed pyloric outlet.