Table 3. Newly described causes of chronic intestinal pseudo-obstruction.

CAID syndrome (SGOL 1 mutation)

ACTG2 gene–associated megacystis–microcolon–intestinal hypoperistalsis syndrome

Mitochondrial diseases (MNGIE)

Deficient interstitial cells of Cajal

Viral infections (CMV, EBV, HSV, rotavirus)

Eosinophilic enterocolitis and neuropathy

Autoimmune (ANNA-1)

“Idiopathic” myositis and neuropathies

Systemic lupus erythematosus/Crohn's disease

New drug effects—perinatal zidovudine

Abbreviations: CAID, chronic atrial and intestinal dysrhythmia; CMV, cytomegalovirus; EBV, Epstein–Barr virus; HSV, herpes simplex virus.