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 ?
Growing popularity of the biopsy forceps devices in patients and healthcare professionals offer lucrative growth opportunities for industry players in the forecast period.
Growing prevalence of cancer and cancer related diseases drives the market demand for biopsy forceps devices in the upcoming years.
Dr Martha Elwenspoek, Research Associate at the NIHR Collaboration for Leadership in Applied Health Research and Care West (NIHR CLAHRC West) and the University of Bristol, said: 'Our findings suggest that using an MRI to guide prostate biopsies is superior to performing a biopsy alone.
The main aim of all procedures of biopsy for cerebral intraparenchymal lesions including framed, frameless or open surgery with craniotomy is to be easy to use, to be reliable and to be able to diagnose correctly.
As image-guided biopsy is an established diagnostic method, there are very few randomized trials evaluating its effectiveness.
We included in this study consecutive biopsies with both standard 12-core sextant and MRI-targeted biopsies with a cancer diagnosis in either standard or targeted biopsies or both performed at the same institution using the same MRI and biopsy protocols between April 2015 and August 2016.
Inclusion and Exclusion Criteria- The inclusion criteria were as follows: All patients with either increased concentrations of PSA (>4.0 ng/mL) or abnormal digital rectal examination, who underwent TRUS biopsy. Among them, we only included those patients who were agreed to participate to this research.
Experts recommended baseline renal biopsy in patients with clinical and laboratory evidence of active lupus nephritis ,before starting immunosuppression (IS) therapy.3,4 Renal histology in patients of SLE can change especially during flare, particularly in terms of LN class, activity index, chronicity index.
Some promising applications of liquid biopsy include cancer treatment and recurrence monitoring, transplant diagnostics, and heterogeneity.
melanocytic nevi, warts, seborrheic keratosis, Paget's disease, superficial basal cell carcinoma, mycosis fungoides, actinic keratosis, psoriasis, lichen planus, lupus erythematosus etc., biopsy has to be taken at the active edge taking piece of epidermis till reticular dermis at least.
After histopathological assessment, we evaluated the clinopathological factors, including age, PSA, prostate volume, mean core length and total biopsy core length.
Biopsy status included whether the lesion was malignant or benign, its pathologic subtype and Fuhrman grade.