biopsy


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Related to biopsy: cervical biopsy, Kidney Biopsy, Liver biopsy, Lung Biopsy, Prostate biopsy, skin biopsy

biopsy

(bīäp`sē), examination of cells or tissues removed from a living organism. Excised material may be studied in order to diagnose disease or to confirm findings of normality. Preparatory techniques depend on the nature of the tissue and the kind of study intended. Incisions may be made and total or partial lesions removed in the form of wedges or cylindrical pieces, or scrapings of the surface membranes of internal organs may be collected. Needlelike instruments may be used to pierce the tissues and remove soft inner material. Once the tissue specimen has been obtained it is fixed, i.e., membrane proteins and enzymes are stabilized and chemical and histologic analyses are carried out by pathologists. Tumors are routinely biopsied in order to determine whether they are malignant. Fine needle aspiration is a technique more readily used for certain tumors or lesions because it is less expensive and damaging than traditional surgical biopsy.

biopsy

[′bī‚äp·sē]
(pathology)
The removal and examination of tissues, cells, or fluids from the living body for the purposes of diagnosis.

biopsy

1. examination, esp under a microscope, of tissue from a living body to determine the cause or extent of a disease
2. the sample taken for such an examination
References in periodicals archive ?
A biopsy can be taken from almost anywhere in the body, for example, your skin, or organs such as your liver or lungs.
The reason you do a biopsy in the first place is that you don't want to do surgery .
Nasal malignancy masquerading as polyposis: Importance of biopsy in powered endoscopic sinus surgery.
DNA was extracted from ground eschar biopsy specimens by using the QIAmp Tissue kit (Qiagen GmbH, Hilden, Germany), according to the manufacturer's recommendations.
The study demonstrated that breast cancers initially addressed by needle biopsy--that is, fine-needle aspiration, vacuum-assisted biopsy, or core biopsy--ultimately entailed fewer operations on the breast, fewer total trips to surgery, and less time to completion of the diagnostic and surgical phases of cancer care.
We heard the industry's call for a better biopsy strategy to provide patients with conclusive test results from the first biopsy," says Robert G.
7 million women will undergo a breast biopsy in 2005; more than 80 percent will result in a non-cancerous diagnosis.
In addition to the issues with biopsy size, there is also variability in sampling, which can lead to incorrect staging of disease.
If the biopsy was read as unsatisfactory or insufficient for diagnosis, it was classified as inadequate.
This was considered the cut-off point because patients with deeper lesions usually go on to have a wide excision and sentinel node biopsy, Dr.