Follow up on Thyroid ultrasound in one year?!

Background (all in 2025) August 18th PET scan from neck to mid thighs for an incidental lung nodule found in ER visit from July 25.

Lung nodule had mild uptake BUT another incidental finding was that my thyroid lit up
The left side has a 1.7cm nodule measurement.
Thyroid Ultrasound on 8/25 - ACR TI-RADS risk category: TR4 (4-6 points and the same risk assessment on left.
These results came in on the 29th.

My primary Dr said the Endocrinologist recommended to wait one year and then rescan. No other info given. I replied to my Dr that I wasn’t comfortable waiting and that more than one study (I sent link) suggested that thyroid nodules over 1 cm should have a biopsy. When the PET scan results are included, the suggestion for biopsy was unequivocally to biopsy.

The endocrinologist has been sent my request again so here I wait. I am scared and frustrated with the situation. I belong to Northern CA Kaiser and have done my share of advocating for myself and family members. I know I’m not a Dr, but I saw absolutely nothing that indicated this is an Active Surveillance condition.

Feed back? Research that maybe shows something I’m not finding?
Thank you