Fine Needle Aspiration Biopsy
Fine Needle Aspiration Biopsy - Related Videos
09:26
Preparation and Using Phantom Lesions to Practice Fine Needle Aspiration Biopsies
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Cited by 6 •
2009
Practicing of fine needle aspiration biopsies (FNAB) by trainees is relatively challenging, due to the lack of an easily available, appropriate lesion. Preparation of an AV phantom lesion for practicing the FNAB procedure and mastering proficiency is relatively easy.
08:33
Detection of Extravascular Trypanosoma Parasites by Fine Needle Aspiration
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2019
Fine Needle Aspiration is a technique, whereby cells are obtained from a lesion or organ using a thin needle. Aspirated material is smeared, stained and examined under a microscope for diagnosis or used for molecular biology, cytometry or in vitro analysis. It is cheap, simple, quick and causes minimal trauma.
06:03
Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules
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Cited by 12 •
2015
We describe the novel use of electromagnetic navigational guided transthoracic needle aspiration for the pathologic assessment of human lung nodules.
10:19
Substernal Thyroid Biopsy Using Endobronchial Ultrasound-guided Transbronchial Needle Aspiration
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Cited by 7 •
2014
Substernal thyroid lesions are common, and need to be differentiated from malignancy. Obtaining percutaneous fine needle biopsy is not possible due to its retrosternal location. This article proposes a protocol for biopsy of substernal thyroid lesions using Endobronchial Ultrasound-guided Transbronchial Needle Aspiration (EBUS-TBNA).
11:27
Preparation and Respirometric Assessment of Mitochondria Isolated from Skeletal Muscle Tissue Obtained by Percutaneous Needle Biopsy
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Cited by 24 •
2015
Methods for biopsy of Vastus lateralis, preparation of purified mitochondria, and respirometric profiling are described. The use of small muscle volume makes this technique suitable for clinical research applications.
FAQs
Gentle suction creates the pressure needed to draw cells or fluid from the targeted lump, nodule, or organ into the thin hollow needle. The collected material is then prepared for cytological analysis, in which pathologists examine individual cells microscopically. This mechanism allows the sample to represent cellular features without requiring removal of a larger tissue segment.
Imaging guidance helps direct the needle toward the intended target, particularly when the sampled lump, nodule, or organ requires precise localization. By supporting accurate needle placement, it can help obtain material from the relevant site for microscopic examination. The approach connects the physical sampling step with the biological question being investigated, such as disease characterization.
Microscopic examination can reveal cellular features associated with benign conditions, infection, inflammation, or malignancy. These categories give pathologists a basis for interpreting what the sampled material indicates about the target. Because the assessment focuses on cells collected from a specific site, the findings can contribute to disease diagnosis, tissue characterization, and decisions about subsequent treatment planning.
Fine Needle Aspiration Biopsy generally requires less tissue and causes less trauma than a surgical biopsy. Its analysis centers on cells or fluid collected through a thin needle, whereas the overview contrasts it with procedures that remove a larger tissue sample. This difference makes the technique useful when cellular information is needed while limiting the extent of sampling.
The target is identified, often with imaging guidance, and a thin hollow needle is introduced into the lump, nodule, or organ. Gentle suction draws cells or fluid into the needle, after which the collected material undergoes microscopic cytological examination. The resulting cellular assessment may classify the finding as benign, infectious, inflammatory, or potentially malignant.
The technique is used for tissue characterization, disease diagnosis, treatment planning, and monitoring. In biology and clinical research, it can provide cellular material from a defined lump, nodule, or organ for microscopic study. Its relatively limited tissue requirement and lower trauma compared with surgical biopsy support its use when repeated or less extensive sampling is relevant.