Phlebectasia in a finger in a case of microscopic polyangiitis with peripheral polyneuropathy.

The patient was a 56-year-old man with microscopic polyangiitis and symmetrical peripheral polyneuropathy of the extremities who was positive for p-ANCA, EMG pattern of mononeuritis multiplex and skin biopsy showing the presence of nonspecific vasculitis. He had phlebectasia with plethora and tortuous vessels on dorsum of the fingers on both hands, paresis and hypoesthesia of fingers and toes with functional limitations. The administration of prednisone, azathioprine and a cyclophosphamide pulse achieved rapid improvement in the general symptoms, but the changes in the neuropathy occurred very slowly. After 47 months of treatment, he had mild phlebectasia in fingers and slight hypoesthesia in hands and feet, with normal laboratory tests. Phlebectasia was probably the result of an autonomic dysfunction due to vasculitis of the vasa nervorum and could be a sign to look for in similar cases.