Définition:
Congenital resulting from the absence of ganglion cells (aganglionosis) in a distal segment of the . The aganglionic segment is permanently contracted thus causing dilatation proximal to it. In most cases, the aganglionic segment is within the and .
Synonyme(s):
Mégacôlon congénital /
Maladie d'Hirschprung /
Aganglionose du côlon /
Aganglionie colique /