alexa Neuromyelitis Optica in Behçet's Disease Successfully Treated with Radiographic MRI Regression: Case Report | Open Access Journals
ISSN: 2167-7921
Journal of Arthritis
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Neuromyelitis Optica in Behçet's Disease Successfully Treated with Radiographic MRI Regression: Case Report

Basant Elnady1*, Tohamy Elkhouly2, Mohamed Alshaar2, Hawazen Alqahtani2, Mohamed Algethami3 and Abdulmajeed M. Algethami4

1Faculty of Medicine Rheumatology and Rehabilitation, Benha University, Egypt

2Radiology Department, Benha University hospital, Egypt

3Internal medicine Departments Al Hada Armed Forces Hospitals, KSA

4Rheumatology Department, Taif University, KSA

Corresponding Author:
Basant Elnady
Associate professor
Associate professor
Faculty of Medicine Rheumatology and Rehabilitation
Benha University, Cairo, New Cairo, Egypt
Tel: 00966562386623
E-mail: [email protected]

Received Date: August 17, 2017; Accepted Date: August 29, 2017; Published Date: August 31, 2017

Citation: Elnady B, Elkhouly T, Alshaar M, Alqahtani H, Algethami M, et al. (2017) Neuromyelitis Optica in Behçet's Disease Successfully Treated with Radiographic MRI Regression: Case Report. J Arthritis 6:250. doi:10.4172/2167-7921.1000250

Copyright: © 2017 Elnady B, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Abstract

Behçet's disease (BD) is a multisystem vasculitis of unknown origin that involves the parenchymal central nervous system (neuro-BD) in less than 10 percent of patients affecting both brain and spinal cord. We reported a rare case of 21-year-old male patient with NBD-myelitis in the form of neuromyelitis optica (NMO) which treated successfully with cyclophosphamide, with marvelous MRI radiographic regression as no disease activity was detected and the patient reported no adverse event, after six cyclophosphamide cycles, cervical MRI marked regression. This case may be an example for decision making and management in such rare cases.

Keywords

Behçet's disease; Neuromyelitis optica; MRI; Cyclophosphamide

Introduction

Neuro-Behçet’s disease one of the serious manifestations of Behçet’s disease, and spinal cord involvement may appear a rare CNS involvement [1-3]. MRI is helpful to reveal mass-like lesions, isolated brain stem and basal ganglia lesions or spinal cord lesions [4].

NMO, is an idiopathic inflammatory central nervous system demyelinating disease, which can be association with some autoimmune diseases [5]. We report the a rare case of NMO treated with six cycles of cyclophosphamide, with marvelous MRI radiographic regression and hope this case may be an example for decision making and management in such cases.

Case Report

A 21-year-old male patient wheelchair bound, labeled as juvenile idiopathic arthritis during childhood, and he was off steroid and methotrexate, presented to rheumatology clinic with history of recurrent arthritis (hands and knee), oro-genital ulcers, progressive lower limbs weakness and inability to walk for more than 6 months and diplopia.

Systemic examinations were unremarkable except for oral ulcers, active genital ulcerations and scars of old ulcerations, bilateral pale optic discs on ophthamoscope. Skin pathergy test (SPT) was positive [6].

Neurological examination revealed, bilateral cerebellar pyramidal syndrome sparing the face, affecting lower limbs more than upper limbs, sensory level at T5-6 segment with dissociation, sphincter disturbance.

In the laboratory investigations, complete blood count, renal and liver function tests, electrolytes, serum creatine kinase, creatine kinasemyocardial bound, thyroid hormones, vitamin B12, folic acid, serum immunoglobulin, and complement levels were all normal. Serologic studies for hepatitis B and C were all negative.

Rheumatoid factor was positive, but ANA, anti Sm, anti SSA/SSB, anti Scl-70, anti Jo-1, anti U1 RNP, and anti-centromere were all negative. HLA B51 was positive however aquaporin-4 antibody is not available in our institution. CSF was normal and negative for oligoclonal bands.

MRI Brain and lumber-spine were unremarkable however; MRI orbit showed optic neuritis and cervical spines showed long segment of cervical demyelinating lesions (Figure 1) with optic neuritis, clinical and radiological findings go with a diagnosis of Behcet’s Disease (BD) with NMO.

arthritis-axial-cervical-MRI

Figure 1: T2W sagittal and axial cervical MRI images, showed long segment of abnormal intramedullary bright T2 signal.

Patient treated with pulse steroid (1000 mg methylprednisolone IVI per day) for three days and received cyclophosphamide cycles (1000 mg/ mg/m2/month) for 6 months and he has improved progressively regarding the weakness, with marvelous MRI regression of the previous findings (Figure 2).

arthritis-imtramedullary-lesions

Figure 2: Follow up T2W sagittal cervical MRI images, revealed marked resolution of the previously reported imtramedullary lesions.

Discussion

Neuro-Behçet disease (NBD) must be considered in the differential diagnosis of stroke in young adults, multiple sclerosis, movement disorders, intracranial hypertension, intracranial Sino venous occlusive diseases, and other neurologic syndromes.

NBD occurs in less than 10 percent of patients with Behçet’s syndrome in most series [7-9]. It is observed more frequently in men than women. Both the central and peripheral nervous systems can be involved. Central nervous system manifestations can be divided into 2 main groups: (1) Parenchymal disease is subdivided into brainstem disease, multifocal (diffuse) disease (including brainstem, cerebral, or spinal cord disease), myelopathy, cerebral disease (including encephalopathy, hemiparesis, hemi sensory loss, seizures, dysphagia, and mental changes such as psychosis and cognitive dysfunction), and optic neuropathy. (2) Non-parenchymal disease includes cerebral venous thrombosis, intracranial hypertension syndrome (pseudo tumor cerebri), acute meningeal syndrome, and uncommonly stroke due to arterial thrombosis, dissection, or aneurysm. Peripheral neuropathy and myopathy are relatively rare [10].

Neuromyelitis optica (NMO) is an idiopathic inflammatory central nervous system demyelinating disease, which mainly affects the spinal cord and optic nerves, previously thought to be a variant of multiple sclerosis (MS). Its clinical evolution and histopathological findings showed differently from MS with common association with some other autoimmune diseases [11].

Autoimmune diseases could be the cause of NMO in some patients, other hypothesis consider it may be co-associated as a result of common autoimmune mechanisms or, others may consider as coassociated in a nonspecific way as optic neuritis and myelitis, can occur in some disease as paraneoplastic diseases and systemic autoimmune diseases [12,13].

Over the last two decades, some reported cases of isolated myelitis, especially a longitudinal segment of transverse myelitis and optic neuritis suggestive of NMO were associated to Sjogrens syndrome or SLE [14].

Patients with systemic autoimmune disease who develop long segment transverse myelitis, associated with optic neuritis, confirmed with MRI lesion patterns are very likely to have NMO coexisting, regardless of the result of aquaporin-4 antibody serologic status. The test for aquaporin-4 autoantibodies could be suppressed by the concomitant use of immunosuppressive medications and steroids in autoimmune patients, increasing the chances of negative serological test for aquaporin-4 autoantibodies [15]. Owing to the lack of data, there is no established treatment protocol for NBD-myelitis. Corticosteroids considered to be effective for the acute phase. Other immunosuppressive medications such as, methotrexate, azathioprine, cyclophosphamide, may be used [16]. Cyclophosphamide may also favorably influence the course of concomitant NMO [17]. Anti TNF therapy as such as infliximab, etanrcept and adalimumab can be used in treatment of BD especially with eye affection as anterior and posterior uveitis however, demyelination could be an associated side effect. Neurologist should avoid therapies that interfere with tumor necrosis factor-alpha function because they can aggravate or induce demyelination in those patients [18,19].

Conclusion

NMO and rheumatologic diseases can be coexisting conditions in autoimmune disease, which are clinically expressed in BD. Neurologists and rheumatologists has an important role to recognize such cases, NMO with BD could be the first CNS event, especially longitudinally extensive transverse myelitis should be suspected. The early therapeutic implications of these relationships should be started as early as possible. Prospective studies of patients with co-existing NMO and rheumatologic diseases are needed to define these relationships for future better diagnostic and therapeutic decisions.

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