Polyneuropathy with endoneurial immune complex deposition as the first manifestation of systemic lupus erythematosus. 1998

I Bódi, and P Váradi, and G Pokorny, and J Engelhardt, and G Dibó, and L Vécsei, and T L Miko
Department of Histopathology, Albert-Szent-Györgi Medical University, Szeged, Hungary. bodi@iop.bpmf.ac.uk

A 72-year-old male presented with progressive sensorimotor polyneuropathy. Later weight loss, proteinuria and deteriorating renal function were noted. The electrophysiological examinations revealed extensive, symmetrical demyelinating and axonal polyneuropathy. Frozen sections obtained from sural nerve biopsy sample showed the presence of immune complexes and complements in the walls of the epi- and endoneurial blood vessels, and perineurium suggestive of systemic lupus erythematous (SLE). IgG and Clq deposits were also present along the basement membranes of Schwann cells. The electron microscopy confirmed the presence of immune complex deposition. Diagnosis of SLE was proven by positive serology (anti-nuclear antibodies, anti-Sm, anti-RNP, anti-double-stranded DNA) and renal biopsy showing membranous lupus nephritis with extensive immune complex deposition in the tubular basement membranes. Despite combined immunosuppressive treatment for 10 months, the patient died of complications of generalized immune complex vasculitis. The manifestation of SLE in elderly patients, especially in males, is very rare. Moreover, the polyneuropathy is an unusual initial symptom of SLE. Immune complex deposition in Schwann cell basement membrane probably plays an important role in the pathomechanism of sensorimotor polyneuropathy in SLE.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D008180 Lupus Erythematosus, Systemic A chronic, relapsing, inflammatory, and often febrile multisystemic disorder of connective tissue, characterized principally by involvement of the skin, joints, kidneys, and serosal membranes. It is of unknown etiology, but is thought to represent a failure of the regulatory mechanisms of the autoimmune system. The disease is marked by a wide range of system dysfunctions, an elevated erythrocyte sedimentation rate, and the formation of LE cells in the blood or bone marrow. Libman-Sacks Disease,Lupus Erythematosus Disseminatus,Systemic Lupus Erythematosus,Disease, Libman-Sacks,Libman Sacks Disease
D008181 Lupus Nephritis Glomerulonephritis associated with autoimmune disease SYSTEMIC LUPUS ERYTHEMATOSUS. Lupus nephritis is histologically classified into 6 classes: class I - normal glomeruli, class II - pure mesangial alterations, class III - focal segmental glomerulonephritis, class IV - diffuse glomerulonephritis, class V - diffuse membranous glomerulonephritis, and class VI - advanced sclerosing glomerulonephritis (The World Health Organization classification 1982). Glomerulonephritis, Lupus,Lupus Glomerulonephritis,Nephritis, Lupus,Glomerulonephritides, Lupus,Lupus Glomerulonephritides,Lupus Nephritides,Nephritides, Lupus
D008297 Male Males
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D010523 Peripheral Nervous System Diseases Diseases of the peripheral nerves external to the brain and spinal cord, which includes diseases of the nerve roots, ganglia, plexi, autonomic nerves, sensory nerves, and motor nerves. Peripheral Nerve Diseases,Peripheral Neuropathies,PNS (Peripheral Nervous System) Diseases,PNS Diseases,Peripheral Nervous System Disease,Peripheral Nervous System Disorders,Nerve Disease, Peripheral,Nerve Diseases, Peripheral,Neuropathy, Peripheral,PNS Disease,Peripheral Nerve Disease,Peripheral Neuropathy
D010525 Peripheral Nerves The nerves outside of the brain and spinal cord, including the autonomic, cranial, and spinal nerves. Peripheral nerves contain non-neuronal cells and connective tissue as well as axons. The connective tissue layers include, from the outside to the inside, the epineurium, the perineurium, and the endoneurium. Endoneurium,Epineurium,Perineurium,Endoneuriums,Epineuriums,Nerve, Peripheral,Nerves, Peripheral,Perineuriums,Peripheral Nerve
D011507 Proteinuria The presence of proteins in the urine, an indicator of KIDNEY DISEASES. Proteinurias
D003711 Demyelinating Diseases Diseases characterized by loss or dysfunction of myelin in the central or peripheral nervous system. Clinically Isolated CNS Demyelinating Syndrome,Clinically Isolated Syndrome, CNS Demyelinating,Demyelinating Disorders,Demyelination,Demyelinating Disease,Demyelinating Disorder,Demyelinations
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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