A 30 years old male patient presents with complaints of weakness in right upper and both lower limbs for last 4 months. He developed digital infarcts involving 2nd and 3rd fingers on right side and 5th finger on left side.

 A 30 years old male patient presents with complaints of weakness in right upper and both lower limbs for last 4 months. He developed digital infarcts involving 2nd and 3rd fingers on right side and 5th finger on left side. On examination, BP was 160/140 mm Hg, all peripheral pulses were palpable and there was asymmetrical neuropathy. Investigations showed a Hb-12 gm, TLC - 12000 Cu mm, Platelets 4,30,000, ESR - 49mm. Urine examination showed proteinuria and RBC - 10-15/hpf with no casts. Which of the following is the most likely diagnosis.
1 Polyarteritis nodosa.
2 Systemic lupus erythematosus.
3 Wegener’s granulomatosis.
4 Mixed cryoglobulinemia.