PMC10041613_01
EMG of the patient left flexor digitorum brevis muscle. Rhythmic contractions at a frequency of 2-3 Hz can be appreciated in the tracing. (a) General view of the patient's EMG tracing. (b) Close-up view of the EMG tracing.
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Supplemental Figure 1 (Video) presents the features of the patient left toe movements. Needle electromyography (EMG) examination of selected muscles in the left lower extremity was also performed, which revealed a rhythmic slow 2-3 Hz tremor isolated to the flexor digitorum brevis muscle (Figure 1).
Incobotulinum toxin A injection site at the left flexor digitorum brevis muscle.
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Figure 2 presents a diagram of the injection site.