30th July 2023

A 22-year-old man presents to A&E with a three-week history of diarrhoea and abdominal pain

A 22-year-old man presents to A&E with a three-week history of diarrhoea and abdominal pain. He reports stool containing mucus, mixed with blood. He is noted to be febrile and tachycardic but normotensive. He has no known past medical history of note and no recent foreign travel.
What is the most likely diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.