biopsy


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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 ?
Vacuum assisted breast biopsy devices, core needle biopsies and fine needle aspiration biopsy are commonly used to perform biopsy procedures.
Pleural biopsy was done in 51 patients (44 males and 7 females) and the results of histopathological examination, BACTEC culture and reverse transcriptase polymerase chain reaction on the pleural biopsy specimens were analysed and the results of which were as follows.
Renal biopsy has a fundamental role in the evaluation of proteinuric patients, their treatment and to assess prognosis.
In addition to an established role in the staging of prostate cancer (6-8), magnetic resonance imaging (MRI) has an increasing role for the localization of prostate tumors which can then be targeted for biopsy (9-11).
Liver biopsy is useful in the diagnosis of primary hepatobiliary disorders and provides incomparable information in monitoring the efficacy of treatment in certain disorders.
The mass in the anterior abdominal wall represented hepatocellular carcinoma seeding of tumor and omentum biopsy revealed that it was hepatocellular carcinoma metastasis.
Study Population: Male who underwent saturation prostate biopsy at the San Ignacio Hospital, from January 2005 to February 2015.
Of those tumors found using the fusion biopsy technique, 38 percent had a potentially aggressive tumor.
While many people are nervous about biopsying an ulcer, most biopsy sites heal very well with no complications, she noted.
sup][9] Therefore, it may be inappropriate to use guidelines for biopsy in Chinese patients based on cutoffs for PSA and other parameters using data from a Western population.
KEY WORDS: Abrams biopsy; Pleural effusion; Pleural biopsy.