[Result of surgical treatment to benign thyroid tumor]

Surgical results of 81 cases with various benign thyroid tumors were reviewed. All had undergone mainly hemi-lobectomy including isthmectomy and had been followed up for more than 2 years. Sixty-eight (84%) have been well without any complaint. However, 5 of 15 cases with adenomatous goiter (AG) again developed nodule(s) in the remnant thyroid and 1 of 37 cases with adenoma developed cancer in the remnant. In order to prevent recurrence in the cases with AG, total thyroidectomy may be required with the meticulous selection of the case. For the cases with AG which undergone hemilobectomy or lumpectomy, TSH suppression treatment may be also required after surgery. It is of caution that the nodule developed in the thyroid after surgery may be not always the same nodule as primary one.