Under what circumstances need to do thyroid fine needle examination

1) Needle biopsy should be considered for thyroid nodules with a diameter of more than 1 cm, those with malignant signs on ultrasound examination.

(2) For thyroid nodules ≤1cm in diameter, routine needle biopsy is not recommended. However, if one of the following situations exists, US-FNAB can be considered:

Ultrasonography revealed malignant signs of the nodules.

With abnormal ultrasound imaging of cervical lymph nodes.

He had a history of cervical radiation exposure or exposure to radiation pollution in childhood.

A family history of thyroid cancer or a history of thyroid cancer syndrome.

18F-FDG PET imaging was positive.

Accompanied by abnormally elevated serum calcitonin levels.

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