Thyroidectomy is usually performed for the following reasons:
As therapy for some individuals with thyrotoxicosis; those with Graves’ disease; and others with a hot nodule or toxic nodular goiter.
To establish a definitive diagnosis of a mass within the thyroid gland, especially when cytologic analysis after fine needle aspiration (FNA) is either non-diagnostic or equivocal.
To treat benign and malignant thyroid tumors.
To alleviate pressure symptoms or respiratory difficulties associated with a benign or malignant process.
To remove an unsightly goiter (Figure 9).
To remove large substernal goiters, especially when they cause respiratory difficulties.