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 ?
Fine needle aspiration biopsy of suspected metastatic cancers to the posterior uvea.
Fine needle aspiration biopsy: role in diagnosis of pediatric head and neck masses.
Fine needle aspiration biopsy of the salivary gland: problem cases.
Safety and efficacy of unguided trans thoracic fine needle aspiration biopsy (FNAB) in outdoor patients.
Keywords: Thyroid nodule Fine needle aspiration biopsy Shear Wave Elastography.
Fine needle aspiration biopsy has been shown to be the diagnostic procedure of choice for superficial lymphadenitis in tuberculosis (TB)-endemic regions.
Frias-Hidvegi, "Fine needle aspiration biopsy of the salivary glands: a fiveyear experience with emphasis on diagnostic pitfalls," Acta Cytologica, vol.
Accuracy, sensitivity and specificity of fine needle aspiration biopsy in salivary gland tumours: a retrospective study.
Image-guided coaxial fine needle aspiration biopsy with a side existing guide comput.
Last published as Manual of gastroenterologic procedures in 1993, the fourth edition adds chapters on endoscopic ultrasound, fine needle aspiration biopsy, Stretta, Enteryx injection, and argon plasma coagulation.