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 ?
The same research reported that as of 2004, perhaps as many as 5,000 people were driving legally with the help of bioptic telescopic lenses.
There are a few terms (such as "Section 504") that were unfamiliar to me as a nonAmerican, and Europeans will envy the widespread availability of bioptic driving for young people in the United States.
Under the Photonic Products contract, the British subsidiary would supply over 100,000 laser assemblies for next-generation bioptic point-of-sale bar code scanner systems, which Blodgett called the "the most advanced bar code scanner.
Histopathology of bioptic samples revealed epithelioid neoplastic proliferation with a tubulopapillary pattern, falsely suggesting metastatic adenocarcinomatosis.
Endoscopic and bioptic findings in the upper gastrointestinal tract in patients with Crohn's disease.
In bioptic specimens, it is important to pay attention to cytoplasmic and nuclear features to distinguish between oncocytoma and chromophobe renal cell carcinoma, a distinct tumor with an intermediate prognosis.
Each unit will be fitted with a hand-held barcode scanner from Symbol Technologies, a flatbed bioptic scanner from NCR, an IBM SureMark 4610 thermal printer and an IBM 4820 SurePoint touchscreen.
In sum, AIDS patients with oral candidiasis in countries similar to Uganda can be managed without endoscopic and bioptic assessments since oral lesions are typical and a high prevalence of esophageal involvement is expected (with or without symptoms) ([is greater than] 90% of cases in our study).
NYSE: MSI), a leading provider of mission-critical communication solutions and services for enterprise and government customers, today announced the MP6000 multi-plane scanner/scale, an imaging-based bioptic solution that will help customers quickly checkout at retail stores.
a The system on the left is a bioptic and on the right is a normal distance telescopic spectacle
Face recognition in age-related macular degeneration: Perceived disability, measured disability, and performance with a bioptic device.
The solution integrates ADT's extended line of Sensormatic Ultra*Max deactivators with NCR's latest generation, small-footprint bioptic scanner/scale, the NCR RealScan 74 OFX.