Misdiagnosis of Underlying Causes of Myasthenia Gravis

About underlying conditions: With a diagnosis of Myasthenia Gravis, it is important to consider whether there is an underlying condition causing Myasthenia Gravis. These are other medical conditions that may possibly cause Myasthenia Gravis. For general information on this form of misdiagnosis, see Underlying Condition Misdiagnosis or Overview of Misdiagnosis

Underlying conditions list: The list of possible underlying conditions mentioned in various sources for Myasthenia Gravis includes:

Thymus tumor
Thymus abnormality

Underlying conditions discussion: In rare cases, myasthenia is caused by a genetic abnormality in neuromuscular transmission, and appears in infants born to non-myasthenic mothers. This type is called congenital myasthenia. However, the vast majority of cases can be attributed to an acquired disorder of the immune system that appears in adulthood. ¹

Footnotes:
1. excerpt from MYASTHENIA GRAVIS: NWHIC

Last revision: June 4, 2003

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