Ileitis is an inflammation of the ileum, a portion of the small intestine.

Mycobacterium tuberculosis infection may mimic Crohn's disease Ileitis.

[1] Ileitis may be linked to a broad range of illnesses, such as sarcoidosis, amyloidosis, ischemia, neoplasms, spondyloarthropathies, vasculitides, drug-related conditions, and eosinophilic enteritis.

[2]` When it comes to ileitis, the majority of cases are caused by an acute, self-limited form of lower right quadrant pain and/or diarrhea.

Unless symptoms indicate that additional testing is necessary, ileitis linked to spondyloarthropathy or nonsteroidal anti-inflammatory drugs is usually subclinical and goes unnoticed.