biopsy

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Related to endoscopic biopsy: incisional 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.

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 ?
A definitive antemortem diagnosis and successful therapeutic plan were only made by endoscopic biopsy, cytologic examination, and culture.
In the majority of cases, the definitive diagnosis of neurosarcoidosis requires direct histologic evidence of noncaseating granulomas, which prompted our patient's endoscopic biopsy.
Open biopsy is carried out when endoscopic biopsy isn't possible or when it is likely that the organ or tumour needs removing.
The purpose of this investigation was to assess the histopathologic diagnostic accuracy of specimens from the ureter, renal pelvis, and ureteropelvic junction obtained via endoscopic biopsy and to determine the specificity and sensitivity for ureteroscopic biopsy, based upon histopathologic findings.
3,8,10,16,17,18,23) Endoscopic biopsy achieves a definitive diagnosis in only 50% of cases.
We obtained endoscopic biopsy samples from 8 patients undergoing gastroscopy for intestinal metaplasia of the lower esophagus (Barrett esophagus) at Helsinki University Central Hospital.
The diagnosis of gastroduodenal Crohn's disease by endoscopic biopsy.
Barrett's has traditionally been managed with frequent endoscopic biopsy surveillance to detect progression to cancer.
The global cancer diagnostics market is segmented as follows: Cancer Diagnostics Market, by Method Tumor Biomarker Tests PSA Tests CTC Tests AFP Tests CA 19-9 CA 125 EGFR HER2 CEA BRCA KRAS ALK Imaging MRI Scan PET Scan CT Scan Mammography Ultrasound Endoscopy Bronchoscopy Colonoscopy Sigmoidoscopy Colposcopy Others Biopsy Bone Marrow Biopsy Needle Biopsy Endoscopic Biopsy Cancer Diagnostics Market, by Application Leukemia Breast Cancer Colorectal Cancer Kidney Liver Lung Ovarian Pancreatic Prostate Cancer Diagnostics Market, by Geography North America Europe Asia-Pacific Rest of the World
The ultimate diagnosis of sinonasal RMS, specifically the embryonal subtype, was made through a transnasal endoscopic biopsy (figure 2).
40-44) The ability to provide a more targeted approach to surveillance endoscopic biopsy via in vivo OCT may decrease sampling error and increase diagnostic yield.
In patients undergoing endoscopic biopsy alone, there was one mucosal tear resulting from the biopsy, and one resulting from trauma from the endoscope.