thyroid nodule

My husband has a thyroid nodule, the doctor did a needle biopsy and found Hurtle cells inside. He said normally he does not see these cells especially in men. He has had his nodule for 5years with no problems to our knowledge it doesn't hurt or anything. The doctor said he would consider this a pre-cancerous condition as these cells are unpredicatable they can be hot get hot or stay cold. His recommendations are to remove this half of his thyroid possibly the whole thyroid if the removed section test indicate cancer or are likely to become cancerous. His surgery is in a month what advice can you offer? His blood results are normal for the function of his thyroid. He is taking a hormone to subdue the work placed on the thyroid. I don't want him to remove it but am afraid for him.
Thanks,
Krista Tweet