Paraneoplastic syndromes associated with lung cancer: a unique case of concomitant subacute cerebellar degeneration and Lambert-Eaton myasthenic syndrome.

IMPLICATIONS: We report an unusual case in which a patient with paraneoplastic subacute cerebellar degeneration (a brain disorder resulting from antibody production by a tumor located outside the skull) developed Lambert-Eaton Myasthenic Syndrome (antibody-mediated skeletal muscle weakness) that was not apparent until she underwent surgery. Failure to recognize this disease process can cause life-threatening respiratory distress.