Diarrhoea: An Inflammatory Disorder Mimicking an Infection.

Diarrhoea is a common presentation in acute emergency with potentially multifactorial causes. Hence, the chances of misdiagnosis can be high. Among these causes are listed diseases which are primarily inflammatory in nature. Presented here is a rare case of Behcet's colitis with valuable clinical lessons, in a patient who is known to have Behcet's disease and was admitted with acute onset bloody diarrhoea. This was a gastrointestinal manifestation of the patient's multisystemic inflammatory disorder as proven by investigations via computed tomography (CT) scan, sigmoidoscopy, and histology. He was treated with steroids and mesalazine, and later switched to infliximab and made a quick recovery.