Describe clinical features of the early presentation.
Delayed passage of meconium (> 48 hours)
Distal intestinal obstruction: abdominal distention and bilious vomiting
Digital rectal examination
Tight anal sphincter
Empty rectum
Squirt sign: explosive release of stool and air upon removal of the finger
Palpation of feces via the abdominal wall
Describe clinical featuers of the late presentation.
Chronic constipation with possible inability to pass gas
Failure to thrive/poor feeding
Squirt Sign (detailed)
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