Needle Biopsy
Needle 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.
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.
05:32
Povidone Iodine Rectal Preparation at Time of Prostate Needle Biopsy is a Simple and Reproducible Means to Reduce Risk of Procedural Infection
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Cited by 5 •
2015
Here, we present a protocol for use at the time of transrectal ultrasound guided prostate needle biopsy (TRUS PNB) that is a simple and cost-effective means to reduce infections following the procedure.
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).
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.
FAQs
Suction retrieves cells or tissue fragments by drawing material through the hollow needle, whereas a cutting mechanism removes a more organized tissue sample. The collected material can therefore support different forms of examination, including cytological analysis of cells, histological assessment of tissue structure, or molecular testing. Selecting the retrieval approach helps match the sample to the biological question.
Imaging guidance helps position the needle within the intended biological target when direct placement may be difficult. Accurate positioning supports targeted collection from the area under investigation and can improve the relevance of the sample for examining disease-related changes. This is especially useful when the tissue of interest must be distinguished from surrounding structures.
A needle biopsy provides material from a specific area while limiting the need to remove an entire lesion. The resulting cells or tissue can reveal structural, cellular, and molecular changes associated with disease. This targeted approach gives researchers and clinicians biologically relevant information while generally causing less tissue disruption and requiring less recovery time than more extensive tissue removal.
The examination method determines which level of biological information is emphasized. Cytological analysis focuses on collected cells, histological analysis examines tissue organization, and molecular analysis evaluates material at the molecular level. Using these approaches, a sample may contribute to diagnosis, tumor classification, inflammation assessment, or evaluation of how biological changes respond to treatment.
The procedure begins by identifying the area to be sampled and preparing a path through the skin. A hollow needle is then advanced into the target, with imaging used when needed to guide placement. Suction or a cutting mechanism retrieves the sample, which is subsequently examined through cytological, histological, or molecular analysis.
Needle biopsy is useful when the goal is to obtain representative biological material without removing the entire lesion. Its minimally invasive, targeted approach can support diagnosis, tumor classification, inflammation assessment, and treatment-response evaluation while generally limiting tissue disruption. This makes it relevant when cellular or tissue information is needed with a shorter recovery burden.
Samples obtained from a targeted lesion can be examined for cellular organization and molecular features relevant to tumor classification. Repeated or appropriately timed sampling may also provide material for comparing disease-related changes during treatment, although the overview specifically establishes the method as useful for evaluating treatment responses. These results connect local tissue findings with broader biological assessment.