Table 2.

Important differentials in the diagnosis of ulcerative colitis.

DiagnosisDifferentials
Infectious colitis> Campylobacter spp
> Salmonella
> Escherichia coli 0157
> Shigella
> Clostridium difficile
> Cytomegalovirus-induced colitis in immunosuppressed patients
> Chlamydia trachomatis (lymphogranuloma venereum)
Inflammatory> Crohn's disease
> Diverticulitis
Vascular> Ischaemic colitis
Iatrogenic> Drug-induced colitis, particularly non-steroidal anti-inflammatory drugs
> Radiation protopathy