I was diagnosed in October, 2009 with multi nodular thyroid. Had an FNA biopsy that was benign. Follow up in 2010 revealed nodule had grown. Had another FNA biopsy, also benign. Recently did follow up with ultrasound that revealed nodule had grown significantly. Surgery is now recommended. I am very frightened not only of the surgery, but the outcome. What are the chances of this pathology being benign? Is the dr. being so adamant about surgery because there is suspicion? Very worried.