26th June 2023

A 37-year-old male attends the renal clinic for follow up. He has a history of asthma, sinusitis and has recently been treated for a nephropathy.

A 37-year-old male attends the renal clinic for follow up. He has a history of asthma, sinusitis and has recently been treated for a nephropathy. He originally responded well with initiation of steroids and cyclophosphamide. His most recent blood tests unfortunately show a gradual deterioration in renal function and anaemia and his renal biopsy showed crescents in his glomeruli.

What is the patient’s most likely underlying condition?

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