May Be Caused by

 Common

Barium in appendix

Barium in diverticula

Fecal impaction

Gastric obstruction

Nonobstructive ileus

 Uncommon

Aganglionosis of colon

Blind loop syndrome

Chagas disease

Cryptosporidiosis

Drug effect

Duplication of intestine

Hirschsprung disease

Hypothyroidism

Infantile hypothyroidism

Meckel diverticulum

Perforation of intestine

Postoperative state

Scleroderma

Stricture of intestine