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Clinical manifestations of vasculitic neuropathy

Steven David Brass, MD, MPH, MBA
Simon M Helfgott, MD
Section Editors
Peter A Merkel, MD, MPH
Jeremy M Shefner, MD, PhD
Deputy Editor
Monica Ramirez Curtis, MD, MPH


Vasculitic diseases can affect any organ or tissue, including the peripheral nerves. When vasculitis affects the vasa nervorum, the results are often critical ischemia to peripheral nerves and potentially profound clinical sequelae.

Vasculitic neuropathy is usually only one feature of a systemic condition that can involve the skin, lungs, kidneys, and other organs. As an example, the group of vasculitic disorders commonly associated with antineutrophil cytoplasmic antibodies (ANCA; ie, granulomatosis with polyangiitis [GPA; Wegener's], microscopic polyangiitis [MPA], and eosinophilic granulomatosis with polyangiitis [EGPA; Churg-Strauss]) often cause vasculitic neuropathy. Polyarteritis nodosa (PAN) and mixed cryoglobulinemia are also prone to involve the peripheral nervous system.

In a minority of patients with vasculitic neuropathy, the peripheral nervous system vasculitis occurs in isolation. In this setting, the disorder is referred to as nonsystemic vasculitic neuropathy or isolated peripheral nervous system vasculitis [1-4].

Even in the absence of frank systemic vasculitis, nonsystemic vasculitic neuropathy can be a devastating illness, leading to severe functional disabilities from which some patients never recover fully. Because the regeneration of peripheral nerves may require months or years, the goal of therapy is to control the inflammation within the vasa nervorum as quickly as possible to prevent or minimize nerve damage.

This topic will review the clinical manifestations of vasculitic peripheral neuropathy. The diagnosis and treatment of vasculitic neuropathy are presented separately. (See "Diagnosis and treatment of vasculitic neuropathy".)

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Literature review current through: Nov 2017. | This topic last updated: Nov 21, 2017.
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