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Tuberculosis & Respiratory Diseases

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Vol.59 No.4
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A Case of Lambert-Eaton Myasthenic Syndrome with Positive VGSS Antibodies Diagnosed in Small Cell Lung Cancer

Tuberculosis & Respiratory Diseases / Tuberculosis & Respiratory Diseases,
2005, v.59 no.4, pp.427-431








& (2005). A Case of Lambert-Eaton Myasthenic Syndrome with Positive VGSS Antibodies Diagnosed in Small Cell Lung Cancer. Tuberculosis & Respiratory Diseases, 59(4), 427-431.
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Abstract

Lambert-Eaton myasthenic syndrome (LEMS), a rare autoimmune neurological syndrome, is caused by defects in the secretion of acetylcholine from the presynaptic membrane, and is associated with the destruction of voltage gated calcium channels (VGCC) in the neuromuscular junction.  LEMS can be confirmed by repetitive nerve stimulation and by the clinical symptoms, which are characterized by proximal muscle weakness in the lower extremities, decreased deep tendon reflexes and autonomic dysfunctions. In about 60% of patients with this disorder, underlying cancer-small cell lung cancer may be detected.  Clinical symptoms may precede the diagnosis of malignancy, with the early diagnosis and treatment of the underlying malignancy being possible through the diagnosis of LEMS. A case of LEMS, with positive VGCC antibodies, in a 48-year-old man, which improved after chemotherapy of the underlying small cell lung cancer, is reported. (Tuberc Respir Dis 2005; 59: 427-431)

keywords
Lambert-Eaton myasthenic syndrome, Small cell lung cancer, Lambert-Eaton myasthenic syndrome, Small cell lung cancer

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