Symptom Information: Sort according to HPO 

1
(HPO:0002013) Vomiting 191 / 7739
2
(HPO:0002019) Constipation 194 / 7739
3
(HPO:0003270) Abdominal distention 46 / 7739
4
(HPO:0004387) Enterocolitis 7 / 7739
5
(OMIM) Failure to pass meconium in first 48 hours of life 1 / 7739
6
(OMIM) Barium enema shows transition zone between aganglionic contracted segment and dilated proximal bowel 2 / 7739
7
(OMIM) Absent enteric ganglia beginning at the rectum and extends proximally by varying degrees 1 / 7739
8
(OMIM) Acetylcholinesterase staining reveals nerve trunk hypertrophy 1 / 7739