biopsy

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Related to aspiration biopsy: aspiration cytology

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 ?
Surgeon-Performed Ultrasound-Guided Thyroid Fine-Needle Aspiration Biopsy: Evaluation of 470 Biopsies.
Comparison of palpation-guided fine-needle aspiration biopsy to ultrasound-guided fine-needle aspiration biopsy in the evaluation of thyroid nodules.
Why our patient sustained a strong and precocious progression of the infection into the IVD and adjacent vertebral body after a CT-guided aspiration biopsy of the vertebral body is somewhat an enigma.
Kim, "The diagnostic accuracy of ultrasound-guided fine-needle aspiration biopsy and the sonographic differences between benign and malignant thyroid nodules 3 cm or larger," Thyroid, vol.
Norris, "The triage role of fine needle aspiration biopsy of palpable breast masses: diagnostic accuracy and cost-effectiveness," Acta Cytologica, vol.
Accuracy of fine-needle aspiration biopsy in the diagnosis of well-differentiated thyroid carcinoma Cancer type Cytological findings Definite Suspicious for Benign/ malignancy, malignancy, indeterminate, n (%) n (%) n (%) Papillary (n = 56) 22 (39.3) 6(10.7) 28 (50.0) Follicular (n = 33) 6 (18.2) 5 (15.2) 22 (66.7) Mixed (n = 10) 0 (0) 2 (20.0) 8 (80.0) Total (N = 99) 28 (28.3) 13 (31.1) 58 (58.6)
Material and Method: Between May 2003 and June 2009, fine-needle aspiration biopsy was performed in 14 patients with an intraocular tumor.
Cell block technique for fine needle aspiration biopsy. J Clin Pathol.
Fine needle aspiration biopsy revealed abundant cystic fluid.