Myasthenia Gravis News Community › Forums › Healthcare and Treatments › Do You Have Seronegative MG? How Were You Diagnosed? › Reply To: Do You Have Seronegative MG? How Were You Diagnosed?

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    I was diagnosed just under a year ago.  I believe it was the EMG test that pretty much confirmed the diagnosis along with the symptoms I was having. I also responded well to the Mestinon.  I was told the excellent results with the Mestinon was very helpful with confirming the diagnosis.