Hypersensitivity and Autoimmunity · USMLE Step 1

A patient develops hematuria following a streptococcal infection. Immune complex deposition in glomeruli is seen. What disease is most likely?

  1. Goodpasture syndrome
  2. Graves disease
  3. Post-streptococcal glomerulonephritis
  4. Pemphigus vulgaris
Show answer and explanation

Correct answer: Post-streptococcal glomerulonephritis

PSGN is caused by Type III immune complex deposition after strep infection. Complement activation causes glomerular inflammation.

Difficulty: Medium Question 16 of 20

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