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 ?
An excisional biopsy was recommended due to the superficial location and palpability of the mass.
Lobular neoplasia at 11-gauge vacuum-assisted stereotactic biopsy: correlation with surgical excisional biopsy and mammographic follow-up.
All 57 patients underwent the Clinical Examination, Mammography and trucut Biopsy followed by excisional biopsy, the results of which were available for comparison.
As previous USG-guided FNA cytology was inconclusive, the patient was subjected to a diagnostic laparoscopy and excisional biopsy of the iliac lymph nodes.
The patient initially underwent excisional biopsy of two of the masses that were abutting each other.
Excisional biopsy was planned after obtaining consent from the patient.
Excisional biopsy of the penile nodule showing groups of metastatic carcinoma cells (hematoxylin and eosin stain x400).
Atta-ur-rehman (Oral and maxillofacial surgeons, Khyber College of Dentistry) for taking excisional biopsy.
DURING A ROUTINE MAMMOGRAM, an enlarged follow-up imaging and referred the patient to a surgeon for possible excisional biopsy.
Conclusion: Early diagnosis of cervical lymphadenopathy is most important for the proper management of the underlying disease where excisional biopsy is diagnostic and should be performed without delay.