| Myasthenia Gravis (MG) |
| Onset: |
Childhood to adulthood. |
| Symptoms: |
Weakness and fatigability of muscles of eyes, face, neck, throat, limbs
and/or trunk. |
| Progression: |
Disease progression varies. Drug therapy and/or removal of thymus gland
often effective. |
| Lambert-Eaton Syndrome (LES) |
| Onset: |
Adulthood to middle age. |
| Symptoms: |
Weakness and fatigue of hip muscles with aching back and thigh muscles
common. Lung tumor is sometimes present. |
| Progression: |
Progression varies with success of drug therapy and treatment of any malignancy. |
| Congenital Myasthenic Syndrome (CMS) |
| Onset: |
Infancy or childhood, can be later. |
| Symptoms: |
Generalized weakness and fatigability of voluntary muscles, including
those controlling mobility, eye movement, swallowing and breathing. |
| Progression: |
Varies in severity, and weakness can fluctuate. |
