Idiopathic hypocomplementemic urticarial vasculitis-linked neuropathy.
2009
Abstract Hypocomplementemic urticarial vasculitis (HUV) is a rare form of cutaneous small-vessel vasculitis characterized by recurrent episodes of urticaria and painful, tender, burning or itchy skin lesions, often associated with extracutaneous involvement but usually with no significant peripheral nerve damage. We describe a patient with an HUV of undetermined cause that developed a progressive multifocal sensory neuropathy whose symptoms were temporarily relieved by intravenous immunoglobulin treatment. Sural nerve biopsy showed asymmetrical multifocal nerve fiber loss and axon degeneration in nerve fascicles, a picture suggestive of ischemic damage as a likely result of a vasculitic process. We point out that an axonal neuropathy may complicate idiopathic HUV and suggest looking for peripheral nerve involvement in HUV patients.
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