Vocal cyst is formed dude to ur exaggerated laugh , shout, scream etc. Based on ur report yes surgery is an option. But there is a voice therapy which u can take. Do it for 1-2 months redo the strobe and scoot again to see if there is any change. If there is no change then surgery will be only option.
Next Steps
u can schedule and appointment with me. as I am a voice therapist.
Health Tips
if u follow the exercise and instructions what I say. u may get rid of it too. all depends o. the size of the cyst