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.
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biopsy

[′bī‚äp·sē]
(pathology)
The removal and examination of tissues, cells, or fluids from the living body for the purposes of diagnosis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Espinosa et al., "Complications associated with percutaneous renal biopsy in Spain, 50 years later," Nefrologta, vol.
Percutaneous renal biopsy with ultrasound guidance has better diagnostic yield and low risk of complication [11].
Free-hand, ultrasound-guided percutaneous renal biopsy: experience from a single operator.
Percutaneous renal biopsy (PRB) is usually performed to establish an exact diagnosis in cases of unexplained renal failure, renal parenchymal diseases and a variety of glomerulonephritis so that prompt action could be taken to prevent progression of the disease to end stage renal disease, or to establish prognosis.
Diagnosis after percutaneous renal biopsy (N=112) Primary renal pathology 67 (59.8%) Systemic disease 45 (40.2%) The lower pole of the left kidney was selected for biopsy, unless interpositioned bowel was present.
Complications of percutaneous renal biopsy: a review of 37 years experience.
The routine evaluation of a percutaneous renal biopsy involves examination of the tissue under light, immunofluorescence (and immunoperoxidase in some laboratories), and electron microscopy3.
RESULTS: We studied the efficacy of real time USG as a guidance method in performing a percutaneous renal biopsy in 74 patients with diffuse nephropathies.
Percutaneous renal biopsy in admitted as well as outpatient settings is a minimally invasive diagnostic modality with pivotal role in the diagnostic and therapeutic decision making.
This risk should be considered when deciding whether to subject a patient to percutaneous renal biopsy.
Percutaneous renal biopsy under ultrasonic guidance showed extensive infiltration of interstitium by monomorphic neoplastic cells, some of which were round with round nuclei and scanty cytoplasm.
Surveillance protocols usually require percutaneous renal biopsy first to establish tissue diagnosis of malignancy and the minor risk which goes along with a biopsy.

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