24th May 2023

You are on the acute take and assess a patient who has presented with a low-grade fever and swollen left foot

You are on the acute take and assess a patient who has presented with a low-grade fever and swollen left foot. He is known to have sickle cell disease and type 2 diabetes mellitus. Blood tests show raised C-reactive protein and white cell count. X-ray of his foot shows focal osteopenia, cortical destruction, and periosteal reaction.

What is the diagnosis?