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  • Title: Endoneurial vasculitis and tubuloreticular inclusions in peripheral nerve biopsy.
    Author: Midroni G, Cohen SM, Bilbao JM.
    Journal: Clin Neuropathol; 2000; 19(2):70-6. PubMed ID: 10749287.
    Abstract:
    We describe 3 patients in whom nerve biopsy revealed endothelial tubuloreticular inclusions in association with peripheral nerve endoneurial vasculitis. Two of the patients had systemic lupus erythematosus (SLE), while the third was HIV-positive. Review of our biopsy material featuring the much more common finding of epineurial vasculitis failed to disclose any instances in which endothelial tubuloreticular inclusions (TRIs) were present. We conclude that TRIs and endoneurial vasculitis are closely associated. Moreover, if detected on a nerve biopsy specimen, TRIs are very suggestive of SLE or HIV infection. Finally, literature evidence is cited to suggest that an "acid-labile" alpha-interferon may be pathogenically related to the vasculitic process in these patients, perhaps through a process mediated by tumor necrosis factor.
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