Thyroid Gland Cytological Puncture Under Ultrasound Guidance (FNA)

Cytological puncture of the thyroid gland under ultrasound control, known as fine needle aspiration (FNA), is a minimally invasive diagnostic procedure used to collect cells from thyroid nodules for cytological examination. This technique allows precise targeting of palpable or non-palpable thyroid changes under real-time ultrasound visualization.

When is Thyroid FNA Under Ultrasound Performed?

This procedure is indicated for patients with:

• Palpable thyroid nodules or masses
• Suspicious findings on thyroid ultrasound
• Abnormalities detected during thyroid screening
• Need for cytological verification prior to surgical intervention

How is the Procedure Conducted?

The patient lies supine with the neck slightly extended. The physician disinfects the skin over the lesion and applies ultrasound gel. Under continuous ultrasound guidance, a thin needle (typically 23-27 gauge) is inserted into the target nodule. Cells are aspirated using gentle suction, and the material is immediately smeared onto glass slides or placed in preservative solution for laboratory analysis. The entire procedure usually lasts 10-20 minutes and is performed on an outpatient basis.

Advantages of Ultrasound-Guided Thyroid FNA

• High accuracy in sampling small or deep nodules
• Real-time visualization reducing risk of inadequate sampling
• Minimal patient discomfort
• Low complication rate
• Rapid results informing further management

Potential Complications

Although rare, possible complications include minor bleeding, hematoma, infection, or temporary hoarseness from recurrent laryngeal nerve irritation. Patients are observed briefly after the procedure.

Post-Procedure Care

Patients may resume normal activities right away. Avoid strenuous neck movements for 24 hours. Cytology results are typically available within a few days, guiding decisions on monitoring, repeat biopsy, or treatment.

This procedure improves diagnostic accuracy, aiding effective thyroid health management.