Related to gastrointestinal tract | Not related to gastrointestinal tract |
Peptic ulcer | Hydronephrosis |
Barrett esophagus | Aneurysm of abdominal vessel |
Retained gastric antrum | Calyceal diverticulum |
Duplication cyst of ileum | Anterior sacral meningomyelocele |
Small-bowel obstruction | Hemangioma |
Appendicitis | Lymphoma |
Intussusception | Ectopic kidney |
Inflammatory bowel diseases (e.g., Crohn disease or ulcerative colitis) | Recent laparoscopic surgery (hyperemia at periumbilical port site) |
Carcinoid of small bowel | |
Volvulus | |
Small-bowel bleeding not related to Meckel diverticulum |