Congenital megacolon
The congenital megacolon is misnamed because the megacolon changes are not congenital. Because there are no ganglion cells in the distal intestinal wall of the megacolon, it is in a state of spasm and stenosis, and loses peristaltic and defecation functions, which causes the proximal colon to accumulate stools and accumulate gas, and then expands and enlarges, gradually forming megacolon changes. Has a genetic predisposition.
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