biopsy

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Related to shave biopsy: punch biopsy, skin biopsy, deep shave biopsy

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 ?
(8) Ng et al (9) found there was a significant increase in histopathologic misdiagnosis with a punch biopsy of part of a melanoma (odds ratio [OR]=16.6; 95% confidence interval [CI], 10-27; P<.001) and with shallow shave biopsy (OR=2.6; 95% CI, 1.2-5.7; P=.02) compared with excisional biopsy (including saucerization).
Dermatologists and primary care physicians can easily perform the shave biopsy, which Dr.
5 Regarding pigmented lesion on the lip, shave biopsy is acceptable for a lesion that has not crossed the vermilion border.
Standard transverse sectioning in a shave biopsy specimen may lead to underassessment of the outermost margins parallel to the plane of sectioning.
The initial diagnostic biopsy was a punch biopsy of the nipple in 4 patients, a shave biopsy in 1 patient, and an excision in 2 patients.
For suspected nail melanoma, a nail matrix shave biopsy is sufficient, "unless you suspect advanced melanoma, which is characterized clinically by a dystrophic nail plate in addition to the pigmentation," Dr.
In an effort to reduce disfiguring surgery for what may be a benign pigmented lesion, he has experimented with shave biopsy to remove pigmented areas of the proximal matrix.
A shave biopsy of a neck plaque identified a hyperkeratotic, acanthotic, spongiotic dermatitis with lymphocytes and scattered eosinophils.
In the case of suspicious lesions, clinicians should perform a shave biopsy to ensure that they are not premalignant or malignant tumors.
A deep shave biopsy is less time consuming than elliptical excision, making it easier to perform at the time the lesion is first evaluated.
The smallest specimen had a surface area of 6.2 [mm.sup.2] and the mean surface area of all specimens was approximately 24 [mm.sup.2]--equivalent to a 6 X 2-mm shave biopsy bisected.