Which of the following is associated with destruction of myenteric plexus?
Hirschsprung disease
Secondary Achalasia
HPSS
GIST
12 Ans. is 'b' i.e., Secondary achlasia * Secondary achalasia may arise in Chagas disease, in which Trypanosoma cruzi infection causes destruction of the myenteric plexus, failure of peristalsis, and esophageal dilatation.
Small & Large Intestine