Myasthenia gravis other imaging findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Other Imaging Findings

Immunofluorescence shows IgG antibodies on the neuromuscular junction. (Note that it is not the antibody which causes myasthenia gravis that fluoresces, but rather a secondary antibody directed against it.) Muscle electron microscopy shows receptor infolding and loss of the tips of the folds, together with widening of the synaptic clefts. Both these techniques are currently used for research rather than diagnostically.

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