PMC7533529_01
(A) Electromyographic examination: continuous motor unit activity (CMUA)was seen. (B) After the injection of 10 mg of diazepam, the CMUA gradually weakened and disappeared.
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F1
Electromyographic examination: continuous motor unit activity (CMUA) was seen (Figure 1A). CMUA gradually weakened and disappeared (Figure 1B). CT of the thorax revealed an anterior superior mediastinal mass, suggestive of a thymoma.