30th July 2023

A 27-year-old woman with a known history of Crohn’s disease presents to A&E with severe left-sided loin-to-groin pain

A 27-year-old woman with a known history of Crohn’s disease presents to A&E with severe left-sided loin-to-groin pain. A CT urinary tract is performed, which detects a ureteric calculus.

What is the likely composition of the ureteric calculus?

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