MSRA-2387

A 55-year-old woman presents to the Emergency Department with blood-stained urine and coughing up blood.

On examination, her temperature is 38.2 °C. Her blood pressure is 160/100 mmHg, while her pulse is 92 beats per minute. Her respiratory rate is 20 breaths per minute. Urine testing is positive for protein and red cell casts. Antibodies to the glomerular basement membrane are found on serum testing. A renal biopsy is performed.

What is likely to be seen on the renal biopsy?