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FNA (Fine Needle Aspiration)

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FNA (Fine Needle Aspiration)

FNA (Fine Needle Aspiration) is a procedure used to remove a small sample of tissue from a lump or mass for examination. It is often used for diagnosing or evaluating abnormal growths or cysts, and it may also be used to aspirate fluid from joints.

FNA is typically used for:

  • Lumps or Masses: Sampling tissue from a suspicious lump or mass to determine if it is benign or malignant.
  • Cysts: Extracting fluid from cysts to help diagnose their cause.
  • Thyroid and Breast Tissue: Commonly used for evaluating thyroid nodules or breast lumps.
  • Infection or Inflammation: Detecting signs of infection or chronic inflammation in tissue or joint.

  • Preparation: The area will be cleaned, and a local anesthetic may be applied to numb the site.
  • Needle Insertion: A thin, hollow needle is inserted into the mass, lump, or joint to collect a tissue sample or aspirate fluid.
  • Sample Collection: The needle is gently moved in and out to collect enough tissue for testing.
  • Imaging Guidance: In some cases, ultrasound or fluoroscopic guidance will be used to ensure the needle is positioned precisely.

FNA is generally a safe procedure, but some risks and side effects include:

  • Bruising or Swelling: Mild bruising or swelling at the needle insertion site.
  • Infection: Although rare, there’s a small risk of infection at the biopsy site.
  • Bleeding: A small amount of bleeding may occur at the insertion site.

  • Medications: Notify your physician of any medications you're taking. You will be instructed to avoid blood thinners (e.g., aspirin, Bayer Back & Body, Excedrin) prior to the exam.
  • Post-Procedure Care: You will need a driver after the procedure due to potential numbness/tingling, discomfort, or other effects that could impair your ability to drive.

  • Ice: Applying ice to the biopsy site can help reduce swelling and bruising.
  • Monitor for Infection: Keep an eye on the site for any signs of infection (redness, increased swelling, or warmth).
  • Follow-Up: Your physician will discuss the results of your biopsy and recommend any necessary next steps.