<unk>  occurs in about 2% of the population. Prevalence in males is 3–5 times higher than in females. Only 2% of cases are symptomatic, which usually presents among children at the age of 2. Most cases of<unk>  are diagnosed when complications manifest or incidentally in unrelated conditions such as laparotomy, laparoscopy or contrast study of the small intestine. Classic presentation in adults includes intestinal obstruction and inflammation of the<unk>  (diverticulitis). Painless rectal bleeding most commonly occurs in toddlers. Inflammation in the ileal<unk>  has symptoms that mimic appendicitis, therefore its diagnosis is of clinical importance. Detailed knowledge of the pathophysiological properties is essential in dealing with the life-threatening complications of<unk> .
Meckel's diverticulum
Hartnup disease
Intussusception 
Mirizzi's syndrome
Hirschsprung's disease
Vesicointestinal fistula
Cord colitis syndrome
Tropical sprue