Giant cell arteritis presenting as renal vasculitis

Giant cell arteritis commonly presents with headache, polymyalgia, and visual signs and symptoms. Other neurological, respiratory or vascular symptoms occur in 10-30% of patients. It is extremely rare for giant cell arteritis to present initially with haematuria. Here we describe a case which presented with fever and haematuria, which emphasise the need to be vigilant about the diagnosis of giant cell arteritis as an underlying cause.