@sacole, I recommend a couple of things.
1. Share the results of your local ultrasound with the ENT team at Mayo Clinic via the patient portal.
2. Contact the ENT department at the Mayo Clinic location where you were seen to request a change in doctor. See the department contact information here: https://www.mayoclinic.org/departments-centers/ent-head-neck-surgery/sections/overview/ovc-20424084