Fine needle biopsy of the thyroid
Guiding the needle under ultrasound allows the locating, taking a sample (by puncture) and injecting of the medication by controlling the trajectory more accurately. It is used for interventional procedures such as biopsy by puncture of the thyroid and the injection or infiltration of a medication.
A fine needle aspiration biopsy of thyroid nodules is a type of biopsy using a syringe with a very fine needle, smaller than that used for a blood test, to remove a small amount of cells that will then be sent to the laboratory. The fine needle aspiration also allows emptying the fluid in a cyst.
- Identification of the nodule
- Local anaesthesia
- Several samplings are necessary to ensure there are enough cells for analysis
Before the examination:
Fast three (3) hours before the examination.
Anticoagulants as well as aspirin must be stopped 7 days before the procedure. You should consult your physician.
If you are allergic to xylocaine, please notify the technologist.
After the examination:
- In case of pain, you may take 1 or 2 acetaminophen tablets.
- A sheet of recommendations to follow will be provided.
15 to 30 minutes
Not covered by the RAMQ
May be covered by your private insurance