What Is FNAC Test? Complete Patient Guide
FNAC Test in Delhi — If your doctor has recommended an FNAC test, you may have questions about what it involves, whether it is painful, and what the results mean. This comprehensive guide will walk you through everything you need to know about Fine Needle Aspiration Cytology (FNAC) — from the science behind it to what happens on the day of your procedure at Edge Imaging & Diagnostics in Delhi.
Table of Contents
Table of Contents for FNAC Test in Delhi
- What is FNAC test?
- How does FNAC work?
- Who needs an FNAC test?
- FNAC procedure step-by-step
- Types of FNAC
- FNAC vs Core Needle Biopsy
- How to prepare for FNAC
- What to expect after FNAC
- How to read FNAC results
- FNAC test cost in Delhi
- Why choose Edge Imaging
- Frequently Asked Questions
What Is FNAC Test?
FNAC (Fine Needle Aspiration Cytology) is a minimally invasive diagnostic procedure in which a thin needle is used to extract cells or fluid from a lump, nodule, or suspicious mass in the body. These extracted cells are then examined under a microscope by a pathologist to determine whether the tissue is benign (non-cancerous), malignant (cancerous), or inflammatory.
FNAC is one of the most widely performed diagnostic tests in modern medicine because it is quick, accurate, relatively painless, and requires no surgical incision. Unlike a surgical biopsy that removes a block of tissue, FNAC uses a needle as thin as those used for blood tests to collect cells directly from the target area.
How Does FNAC Work? for FNAC Test in Delhi
FNAC works by using a fine needle — typically 22 to 25 gauge — attached to a syringe. The radiologist or pathologist inserts this needle into the lump or lesion and aspirates (draws out) a small number of cells using gentle suction. The cells are then smeared onto glass slides, stained with special dyes, and examined under a microscope.
For lesions that cannot be felt on the surface (deep-seated masses in the liver, lungs, kidneys, or abdomen), the needle is guided using ultrasound imaging or CT scanning — a technique called Image-Guided FNAC. This ensures the needle reaches exactly the right spot with pinpoint precision.
Who Needs an FNAC Test?
Your doctor may recommend an FNAC test if you have:
- A lump in the neck, armpit, or groin (swollen lymph nodes)
- A thyroid nodule or goiter
- A breast lump detected on mammography or self-examination
- A liver, kidney, or lung mass seen on CT or ultrasound
- A salivary gland swelling
- A soft tissue lump anywhere in the body
- Suspected tuberculosis (TB) of lymph nodes
- An abdominal mass requiring tissue diagnosis before surgery
FNAC Procedure: Step-by-Step
Step 1: Patient Positioning
You will be positioned lying down or sitting, depending on the location of the mass. The area is cleaned with an antiseptic solution. Local anaesthesia may or may not be used depending on the depth and location of the lesion.
Step 2: Needle Insertion
The doctor inserts the fine needle into the lump. For surface lumps (like neck lymph nodes or thyroid), this is done by feel. For deep-seated masses, it is done under ultrasound or CT guidance for maximum accuracy.
Step 3: Cell Aspiration
A small amount of negative pressure (suction) is applied via the syringe, drawing cells into the needle. The needle is gently moved in and out a few times to collect adequate material. This takes only 10–30 seconds.
Step 4: Slide Preparation
The collected cells are spread onto glass slides, fixed, and sent to the pathology laboratory for staining and microscopic analysis.
Step 5: Microscopic Analysis
A qualified pathologist examines the slides under a microscope and provides a written report categorising the cells as benign, malignant, or requiring further investigation.
Types of FNAC at Edge Imaging
1. Palpation-Guided FNAC
Used for surface lumps that can be felt by the examining doctor — such as neck lymph nodes, thyroid nodules, breast lumps, and parotid gland masses. The most common and quickest type of FNAC.
2. Ultrasound-Guided FNAC (USG-FNAC)
Used when the lesion is deep, small, or cannot be felt on examination. Real-time ultrasound imaging allows the doctor to visualise the needle tip as it enters the lesion, dramatically improving accuracy and safety.
3. CT-Guided FNAC
For deeply placed lesions — such as lung masses, retroperitoneal masses, or adrenal tumours — CT scanning provides three-dimensional guidance to safely reach the target while avoiding vital structures.
FNAC vs Core Needle Biopsy: Key Differences
| Feature | FNAC | Core Needle Biopsy |
|---|---|---|
| Needle size | Fine (22–25G) | Larger (14–18G) |
| Sample type | Cells (cytology) | Tissue core (histology) |
| Anaesthesia | Usually not needed | Local anaesthesia required |
| Pain level | Minimal | Mild-moderate |
| Information | Cell type, malignancy | Tissue architecture, grade |
| Best for | Initial diagnosis | Confirming cancer type/grade |
| Turnaround | 24–48 hours | 3–5 days |
How to Prepare for FNAC Test
Preparation for FNAC Test in Delhi is minimal, making it one of the most convenient diagnostic tests available:
- No fasting required for most surface FNAC procedures
- Fasting for 4–6 hours may be required for image-guided (deep) FNAC
- Inform your doctor about blood thinners (aspirin, warfarin, clopidogrel) — these may need to be stopped 5–7 days before the procedure
- Wear comfortable, loose-fitting clothing
- Bring all previous reports, imaging, and doctor’s referral letter
- A family member should accompany you for image-guided procedures
What to Expect After FNAC
FNAC Test in Delhi is an outpatient procedure — you can go home within minutes of completion. After the procedure:
- Mild soreness or bruising at the needle site is normal and resolves in 1–2 days
- Apply gentle pressure with a clean cotton pad for 5 minutes if there is minor bleeding
- Avoid strenuous activity for the rest of the day
- No special diet restrictions
- Results are typically available within 24–48 hours
How to Read Your FNAC Report
FNAC reports use standardised terminology to categorise findings:
Benign / Negative for Malignancy
The cells are normal or show benign changes (like reactive lymph node, colloid nodule, or fibrocystic change). No cancer was detected. Your doctor will advise monitoring or treatment based on the clinical diagnosis.
Atypical / Indeterminate
The cells show some abnormal features but are not clearly benign or malignant. A repeat FNAC or core biopsy is usually recommended to get a definitive answer.
Suspicious for Malignancy
The cells show features strongly suggestive of cancer. Further investigation — usually a core biopsy or surgical resection — is recommended before starting cancer treatment.
Malignant / Positive for Malignancy
Cancer cells are definitively identified. The report will specify the type of cancer (carcinoma, lymphoma, sarcoma, etc.) to guide further treatment planning.
FNAC Test Cost in Delhi 2026
The cost of FNAC in Delhi varies depending on the type and location of the procedure:
| Procedure Type | Approximate Cost in Delhi |
|---|---|
| Surface FNAC (palpation-guided) | ₹500 – ₹1,500 |
| Ultrasound-Guided FNAC | ₹1,500 – ₹3,500 |
| CT-Guided FNAC | ₹3,000 – ₹8,000 |
At Edge Imaging & Diagnostics, we offer competitive, transparent pricing with no hidden charges. CGHS and DGHS empanelled rates are available for eligible patients. Call us for today’s best price.
Why Choose Edge Imaging for Your FNAC Test in Delhi?
- Doctor-led, ethics-first: All procedures are performed by experienced radiologists and interventional specialists
- Image guidance available: State-of-the-art ultrasound and 128-slice CT for accurate needle placement
- Same-day reporting: Most FNAC reports are ready within 24 hours
- NABH accredited: Highest standards of patient safety and quality
- CGHS & DGHS empanelled: Government employees receive cashless services
- Multiple locations in West Delhi: Tagore Garden, Paschim Vihar, Moti Nagar, New Multan Nagar
- Free doctor consultation after your scan/procedure
When Should You See a Doctor Immediately?
After FNAC, seek immediate medical attention if you experience:
- Significant bleeding that doesn’t stop with pressure
- Increasing swelling or hardness at the biopsy site
- Fever above 38°C
- Shortness of breath (especially after lung or chest FNAC)
- Severe pain at the site
Frequently Asked Questions About FNAC Test
Q1. Is FNAC test painful?
Most patients describe the sensation as similar to a blood test — a brief pinch or mild discomfort. The fine needle used is very thin, and the procedure takes only seconds. For deep-seated lesions requiring image guidance, local anaesthetic is usually applied, making the procedure virtually painless.
Q2. How long does FNAC take?
The actual needle procedure takes only 10–30 seconds per pass. Including preparation and slide making, the entire visit is typically completed in 20–30 minutes for surface FNAC and 45–60 minutes for image-guided FNAC.
Q3. When will I get my FNAC report?
Standard FNAC reports are available within 24–48 hours. Rapid on-site evaluation (ROSE) is available at Edge Imaging where preliminary results can be communicated the same day.
Q4. Is FNAC conclusive for cancer diagnosis?
FNAC is highly accurate for determining whether cells are cancerous. However, it provides cellular (cytological) information rather than tissue architecture. In some cases — especially for lymphomas or sarcomas — a core needle biopsy or surgical biopsy may be additionally required for definitive treatment planning.
Q5. Can FNAC cause cancer to spread?
This is a common concern but is not supported by scientific evidence. Needle track seeding (cancer cells spreading along the needle path) is an extremely rare occurrence with modern fine needles. The risk is far outweighed by the diagnostic benefit of knowing whether a mass is cancerous before treatment.
Q6. Do I need to fast before FNAC?
Fasting is not required for surface FNAC. For CT-guided or deep ultrasound-guided FNAC, 4–6 hours of fasting may be advised as a precaution in case sedation is needed.
Q7. What is the difference between FNAC and biopsy?
FNAC Test in Delhi collects individual cells using a very fine needle (cytology). A biopsy uses a larger needle or surgical technique to remove a small piece of tissue (histology). Histology provides more architectural information. Both have their specific clinical uses and are often complementary.
Q8. How accurate is FNAC?
When performed by an experienced team with image guidance, FNAC Test in Delhi has a sensitivity of 85–95% and specificity of 97–99% for malignancy. At Edge Imaging, our image-guided FNAC procedures are performed by specialist interventional radiologists to maximise accuracy.
Book Your FNAC Test at Edge Imaging, Delhi
Don’t delay a diagnosis that could change your life. Edge Imaging & Diagnostics offers expert FNAC services across our West Delhi centres — Tagore Garden, Paschim Vihar, Moti Nagar, and New Multan Nagar.
✅ Same-day reporting available
✅ NABH accredited centre
✅ CGHS & DGHS empanelled
✅ Free post-procedure consultation
✅ Transparent pricing with no hidden charges
📞 Call us today to book your appointment or walk in to your nearest Edge Imaging centre.
For more information, explore our related guide: Biopsy Test in Delhi
For more information on this procedure, refer to the World Health Organization (WHO) guidelines on medical procedures.
Medical Disclaimer: This article is for educational purposes only and does not substitute professional medical advice. Always consult a qualified doctor for diagnosis and treatment.