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A fine needle aspiration kit is a set of supplies used to collect cells or fluid through a thin needle. The procedure is called fine needle aspiration, or FNA. It is less invasive than many tissue biopsy methods and is often used to sample lumps, nodules, cysts, or abnormal fluid collections. The collected material is examined by a laboratory or pathologist.
read more about fine needle aspiration kit ...A fine needle aspiration kit is used when clinicians need a cell sample from a suspicious or unclear area. It may be used for thyroid nodules, breast lumps, lymph nodes, salivary gland masses, cysts, or other superficial or image-guided targets. The sample can help distinguish fluid-filled cysts, inflammation, infection, benign changes, or cancer. Results are interpreted with imaging, exam findings, and clinical history.
Kit contents vary, but they may include sterile needles, syringes, syringe holder or aspiration handle, slides, specimen containers, antiseptic, gauze, gloves, labels, and dressings. Some procedures also use ultrasound guidance, local anesthetic, or special collection media. The needle size depends on the target and sample needs. Sterility and correct labeling are important for reliable testing.
The clinician cleans the skin and places a thin needle into the target area. Suction may be applied with a syringe while cells or fluid enter the needle. The sample is placed on slides or into a container for laboratory processing. Several passes may be needed if the first sample is not enough for diagnosis.
Possible risks include bruising, bleeding, swelling, discomfort, infection, or inadequate sample. Some FNA results are nondiagnostic and may require repeat aspiration, core biopsy, imaging follow-up, or surgery. FNA samples may not preserve tissue architecture as well as core biopsy samples. Increasing pain, fever, heavy bleeding, or spreading redness should be reported promptly.
Yes. It is a type of biopsy that collects cells or fluid through a thin needle.
No. It usually removes a small sample of cells or fluid, not the entire lump.
It may cause a brief pinch or pressure. Local anesthetic may be used depending on the site and procedure.
Yes. If the sample is too small or not representative, the result may be nondiagnostic and more testing may be needed.
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Thyroid Fine Needle Aspiration Biopsy. Johns Hopkins Medicine. https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/thyroid-fine-needle-aspiration-biopsy. Date Accessed June 18, 2026.