Differential diagnosis of idiopathic inflammatory bowel disease - infectious:
(1) Clostridium difficile
(2) Shigella species
(3) Salmonella species
(4) Yersinia species
(5) Campylobacter species
(6) other Gram-negative bacteria
(7) Entamoeba histolytica
(8) Schistosomiasis mansoni
(9) other parasites
(10) viral gastroenteritis
Differential diagnosis of idiopathic inflammatory bowel disease - noninfectious:
(11) collagenous colitis
(12) lymphocytic colitis
(13) radiation ileitis or colitis
(14) catharctic (laxative-related) colitis
(15) chemical colitis, often associated with enemas
(16) solitary rectal ulcer syndrome
(17) diversion-related colitis
(18) "normal" inflammatory response
(19) eosinophilic gastroenteritis
(20) ischemic colitis
