Diagnostic Test
FNAB (Fine Needle Aspiration Biopsy)
Description
Fine Needle Aspiration Biopsy (FNAB) is a diagnostic procedure that obtains cells from a breast lesion for cytological study. It is performed under real-time ultrasound guidance, ensuring maximum precision over the lesion. It is the least invasive interventional breast procedure: it takes 15-20 minutes, requires no general anaesthesia and the patient can return to normal activity the same day.
Practical Information
15-20 minutes
Do not apply creams or deodorant in the area. Inform us if you take aspirin, anti-inflammatory drugs, anticoagulants or antiplatelet drugs. Check with your doctor first: do not stop anticoagulants or antiplatelet drugs on your own — this must be indicated by the professional who prescribed them.
Price according to health insurance / private patient
Indications and Recommendations
- Solid and cystic breast nodules
- Suspicious axillary lymph nodes
- Cystic lesions with atypical content
- Rapid cytological diagnosis prior to biopsy
Risks and Complications
- Mild pain or discomfort during the puncture
- Small bruise at the puncture site
- Mild bleeding
- Infection (very uncommon)
- In cysts, possible recurrence after the puncture
- Inconclusive result requiring the test to be repeated or a core needle biopsy
Frequently Asked Questions
Does FNAB of the breast hurt?
FNAB is a very well-tolerated procedure. It is performed with a very fine needle, similar to a blood test. You may feel a slight discomfort at the moment of puncture, but it is generally not painful. No anaesthesia is required.
How long do FNAB results take?
The cytological result of an FNAB is usually available within 48-72 working hours. At CRMama we work with pathologists specialised in breast cytology to guarantee the highest diagnostic precision.
What is the difference between FNAB and a breast biopsy?
FNAB obtains loose cells for cytological study (cellular-level diagnosis). Core needle biopsy (CNB) or vacuum-assisted biopsy (VAB) obtains tissue cores for histological study (diagnosis with complete tissue architecture). FNAB is faster and simpler, but for suspicious solid lesions, histological biopsy is preferred for greater precision.
What is ultrasound-guided FNAB?
Ultrasound-guided FNAB is performed under real-time ultrasound control: the radiologist can see both the needle and the lesion on the ultrasound screen at all times, allowing precise puncture even of small or difficult-to-access lesions, minimising patient discomfort.