What is FNAC and its use?

What is FNAC and its use?

Background: Fine Needle Aspiration Cytology (FNAC) is a simple, quick and inexpensive method that is used to sample superficial masses like those found in the neck and is usually performed in the outpatient clinic. It causes minimal trauma to the patient and carries virtually no risk of complications.

What is FNAC SlideShare?

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What is the principle of FNAC?

Fine needle aspiration cytology (FNAC) entails using a narrow gauge (25-22G) needle to collect a sample of a lesion for microscopic examination. It allows a minimally invasive, rapid diagnosis of tissue but does not preserve its histological architecture.

How do you make a FNAC slide?

Slide Preparation for Adequacy:

1. Following the FNA, gently remove the needle from the syringe while holding the needle above the slide in case of accidental spillage of the specimen.
2. Draw air into the syringe and replace the needle onto the syringe.
3. Squirt only 1 – 2 drops to the center of one of the labeled slides.

What is the advantage of FNAC?

The main advantages of FNAC are minimal invasiveness, reduced cost, pathological assessment of small lesions, which are not amenable to CNB. Moreover, it allows same day diagnosis of breast cancer and the identification and management, on the same day, of those patients with benign disease.

Why FNAC test is needed?

When a lump, or a bump is discovered in superficial areas of the body such as the breast and neck, a test known as Fine Needle Aspiration Cytology (FNAC) is recommended to determine whether the lump is cancer. This procedure is also used to test for thyroid, salivary glands and lymph nodes illnesses.

How many methods of FNAC are there?

For the spreading, there are two methods that are widely used and recommended for different types of material. The “one-step method” is preferred for scant and dense material, like the one taken from the majority of breast solid masses. The “two-step method” is used mostly for liquid and hemorrhagic material.

Which staining is used for FNAC?

MGG stain is performed on air-dried material and is preferred for an accurate evaluation of the cytoplasm and background. Cells generally appear larger than they are stained with Papanicolaou. H&E has similar advantages and disadvantages as Papanicolaou staining, but it is less used in cytology ( c).

What is difference between biopsy and FNAC?

The sampling and biopsy considered together are called fine-needle aspiration biopsy (FNAB) or fine-needle aspiration cytology (FNAC) (the latter to emphasize that any aspiration biopsy involves cytopathology, not histopathology). Fine-needle aspiration biopsies are very safe minor surgical procedures.

What is NPV of FNAC?

Thus, fine-needle aspiration cytology (FNAC) is often performed instead. However, we have recently shown that while its positive predictive value (PPV) is high (89%), negative predictive value (NPV) of FNAC is rather low (37%) in irradiated necks [1. R.

What is the standard gauge needle used for FNAC?

Abstract. Concerning the needle size for thyroid fine needle aspiration cytology (FNAC), 25-27-gauge needles are generally used in Western countries. However, in Japan, the use of larger needles (21-22-gauge needles) is common.

How long is FNAC test?

The entire procedure from start to finish generally takes around 20 to 30 minutes if ultrasound is used.

What are the two types of cytology?

There are two main kinds, or branches, of cytology: exfoliative cytology and intervention cytology. Healthcare providers can use cytology tests for almost all areas of your body.

What is FNAC smear?

Introduction. Transthoracic fine-needle aspiration cytology (FNAC) is a well-known, safe, and convenient diagnostic procedure that helps in the early diagnosis of clinically suspected lung tumors.

Can FNAC detect TB?

Fine Needle Aspiration Cytology (FNAC) provides an inexpensive, quick and safe alternative to histopathology for the diagnosis of tuberculosis. It’s a patient friendly technique and provides a good assessment of cytomorphological features.

What is the full name of FNAC?

Fine needle aspiration cytology (FNAC) in the diagnosis of granulomatous lymphadenitis.

How accurate is FNAC test?

Overall, the sensitivity of FNAC diagnosis was found to be 95.2%, specificity was 68.4%, positive predictive value was 83.3%, negative predictive value was 89.6%, and accuracy was 85.14%.

Why FNAC is done for thyroid?

The fine-needle aspiration is also performed to treat thyroid cysts. A thyroid cyst is a fluid-filled sac within the thyroid gland. Aspiration of the cyst with a needle and syringe can shrink the swelling from the cyst and the fluid removed can be analyzed for cancer.