Types

 primitive chronic intestinal pseudo-obstruction

• neuronal anomalies
• muscular anomalies (digestive myopathies)

 secondary intestinal pseudo-obstruction

• scleroderma
• multiple sclerosis
• intestinal neuronal dysplasia (?)
• meconium ileus
• radiation injury
• eosinophilic enteritis
• Chagas disease

 miscellaneous motility anomalies

• Ogilvie syndrome
• toxic megacolon
• rectal prolapse
• diverticulosis

 mechanical obstruction

• digestive tumors
  • digestive carcinomas
  • digestive carcinoid tumor

• Crohn disease with stricture
• peritoneal adhesions