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143168 Medicine

An 18 year old boy presents with digital gangrene of the third and fouh fingers over the last 2 weeks. On examination the blood pressure is 170/110 mm of Hg and all peripheral pulses were palpable. Blood and urine examinations were unremarkable. ANA, Anti-dsDNA and ANCA were negative. Which of the following represents the most likely diagnosis?

AWegener's granulomatosis
BPolyaeritis nodosa
CTakayasu's aeritis
DSystemic lupus erythematosis (SLE)
Medicine
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