A 28-year-old woman has a malar rash, arthralgia, proteinuria and positive anti-dsDNA. What is the diagnosis?
Answer and explanation
Correct answer: A. Systemic lupus erythematosus
- Step 1: The malar rash with renal involvement and anti-dsDNA antibodies is characteristic of lupus. Answer: Systemic lupus erythematosus. Why not the others: Rheumatoid arthritis, Systemic sclerosis and Dermatomyositis don't fit.
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