Double seronegative myasthenia gravis with antiphospholipid syndrome: a case report.

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Version: Final published version
Serval ID
serval:BIB_A6CA332FA6F5
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Institution
Title
Double seronegative myasthenia gravis with antiphospholipid syndrome: a case report.
Journal
Journal of Medical Case Reports
Author(s)
Dan D., Bart P.A., Novy J., Kuntzer T., Clair C.
ISSN
1752-1947 (Electronic)
ISSN-L
1752-1947
Publication state
Published
Issued date
2014
Peer-reviewed
Oui
Volume
8
Number
1
Pages
2
Language
english
Notes
Publication types: Journal ArticlePublication Status: epublish
Abstract
INTRODUCTION: Myasthenia gravis is an autoimmune disease characterized by fluctuating muscle weakness. It is often associated with other autoimmune disorders, such as thyroid disease, rheumatoid arthritis, systemic lupus erythematosus, and antiphospholipid syndrome. Many aspects of autoimmune diseases are not completely understood, particularly when they occur in association, which suggests a common pathogenetic mechanism.
CASE PRESENTATION: We report a case of a 42-year-old Caucasian woman with antiphospholipid syndrome, in whom myasthenia gravis developed years later. She tested negative for both antibodies against the acetylcholine receptor and against muscle-specific receptor tyrosine-kinase, but had typical decremental responses at the repetitive nerve stimulation testing, so that a generalized myasthenia gravis was diagnosed. Her thromboplastin time and activated partial thromboplastin time were high, anticardiolipin and anti-β2 glycoprotein-I antibodies were slightly elevated, as a manifestation of the antiphospholipid syndrome. She had a good clinical response when treated with a combination of pyridostigmine, prednisone and azathioprine.
CONCLUSIONS: Many patients with myasthenia gravis test positive for a large variety of auto-antibodies, testifying of an immune dysregulation, and some display mild T-cell lymphopenia associated with hypergammaglobulinemia and B-cell hyper-reactivity. Both of these mechanisms could explain the occurrence of another autoimmune condition, such as antiphospholipid syndrome, but further studies are necessary to shed light on this matter.Clinicians should be aware that patients with an autoimmune diagnosis such as antiphospholipid syndrome who develop signs and neurological symptoms suggestive of myasthenia gravis are at risk and should prompt an emergent evaluation by a specialist.
Pubmed
Open Access
Yes
Create date
06/02/2014 10:16
Last modification date
04/02/2020 8:01
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