Abstract
Vascular lesions are encountered frequently in renal biopsy specimens of patients with systemic lupus erythematosus (SLE) and can present in a variety of morphologic forms. True renal lupus vasculitis (TRLV) is one of the rare vascular lesions associated with lupus nephritis that has been infrequently reported in the medical literature. The primary focus on glomerular pathology and collective classification of the vascular lesions under lupus vasculopathy is one of the reasons why this form of inflammatory vasculitis has been under-recognized as a separate disease entity. Here we have comprehensively reviewed the literature on renal vascular involvement in SLE for a better understanding of the epidemiology, morphologic features, pathogenesis, clinical course and treatment of TRLV. It can be morphologically differentiated from other forms of renal vascular lesions in lupus nephritis, i.e. arteriosclerosis, uncomplicated vascular immune deposits, non-inflammatory necrotizing vasculopathy, and thrombotic microangiopathy. Despite close similarities with antineutrophil cytoplasmic autoantibody associated vasculitis (AASV), there are certain morphological differences that warrant a thorough investigation of the possible pauci-immune ...Continue Reading
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