Can thyroid nodule fine needle aspiration cause tumor spread

Many people will be found to have thyroid nodules during physical examination. For nodules with high color Doppler ultrasound grade (such as TI-RADS grade above 4), the specialist will recommend fine needle aspiration biopsy of thyroid nodules to confirm the pathological diagnosis. So when a thyroid nodule is popped with a needle, will it cause the tumor to spread? At present, most thyroid cancers are papillary, while FNA is ultrasound-guided puncture, which can accurately locate the thyroid. In addition, at present, special puncture needles with sleeve core are used. The absorbed tissue is stored in the needle core because of negative pressure, which generally does not lead to leakage of tumor cells and does not increase the risk of needle passage metastasis or distant metastasis, so there is no need to worry too much. Only after a definite diagnosis can a reasonable treatment be chosen.

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