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Generally, the tuber of thyroid cancer is very hard and does not move when touched since it is adhered with surrounding tissue, speed of growth is fast and hoarsen due to invasion to surrounding nerves or lymph node around tuber can get larger. All these symptoms indicate possibilities of thyroid cancer but, there are thyroid cancers without any of those symptoms so accurate diagnosis through exam is necessary.
In most of cases, thyroid nodule doesn’t accompanying symptoms but rarely, it induces hyperthyroidism. At this point, all the symptoms of hyperthyroidism will be appears. Thyroid nodule is found in women more frequently. Normally, it is found in female 4-5 times more than in male and the reason of it is still not clear.
Even with confirmation of benign through fine needle aspiration cytology on thyroid nodule, positive immediate treatment is not necessary. Sometimes, thyroid hormone is injected depends on the doctors. When the size of nodule is big and suppress surrounding, nodule is removed by surgical resection. It is the most secure treatment but, in most of cases, it doesn’t create big enough problems that require surgeries. When it is cystic thyroid nodule, sometimes liquid is extracted with syringe and treatment of injecting matters like alcohol is practiced when it relapse.
When thyroid nodule is distinguished as benign, operation is given for the tuber size of over 3 cm and medicine treatment is given for the ones less than 3 cm with observation in 6 month terms but the effects of it is unclear. Therefore, there are no special treating methods for small sized benign nodule.
But lately, radiofrequency ablation system that is being used for liver cancer, uterine fibroid and lung cancer etc. is applied to thyroid benign nodule and exhibits excellent treatment effects.
Radiofrequency ablation is inserting RF electrode to center part of tumor and create radiofrequency by RF generator and burn to eliminate tumors using radiofrequency heat. The advantages of thyroid radiofrequency ablation (RF ablation) are
1. Treat thyroid nodule without scars or surgical operation.
2. Unlike operation, there is no side effect.
3. One day of hospitalization is enough. (Generally, operation requires 5-7days)
4. Treat with local anesthesia.
5. In most of cases, procedure is done with just 1 treatment.
6. Less pain and fast recovery compares to operation.