HY USMLE Q #1352 – Renal

A 10-year-old boy is brought to the physician by his parents due to dark-colored urine and facial puffiness that began 5 days ago. Three weeks prior, he was prescribed topical mupirocin for some lesions on his arms. He is afebrile. BP is 145/95. Physical examination shows periorbital edema and mild bilateral lower extremity swelling. Urinalysis shows 3+ blood and 2+ protein. Which of the following is most likely to be seen in this patient?

  Crescent formation in Bowman’s space with fibrin and macrophages
  IgA deposition in the mesangium
  Linear deposition of IgG along the glomerular basement membrane
  Segmental sclerosis and hyalinosis of some glomeruli
  Subepithelial electron-dense deposits