Biopsy

biopsy /bi·op·sy/ (bi´op-se) removal and examination, usually microscopic, of tissue from the living body, performed to establish precise diagnosis.

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aspiration biopsy  biopsy in which tissue is obtained by application of suction through a needle attached to a syringe.

brush biopsy  biopsy in which cells or tissue are obtained by manipulating tiny brushes against the tissue or lesion in question (e.g., through a bronchoscope) at the desired site.

cone biopsy  biopsy in which an inverted cone of tissue is excised, as from the uterine cervix.

core biopsy , core needle biopsy needle biopsy with a large hollow needle that extracts a core of tissue.

endoscopic biopsy  removal of tissue by appropriate instruments through an endoscope.

excisional biopsy  biopsy of tissue removed by surgical cutting.

incisional biopsy  biopsy of a selected portion of a lesion.

needle biopsy  biopsy in which tissue is obtained by puncture of a tumor, the tissue within the lumen of the needle being detached by rotation, and the needle withdrawn. Called also percutaneous b.

percutaneous biopsy  needle b.

punch biopsy  biopsy in which tissue is obtained by a punch.

shave biopsy  biopsy of a skin lesion in which the sample is excised using a cut parallel to the surface of the surrounding skin.

stereotactic biopsy  biopsy of the brain using stereotactic surgery to locate the biopsy site.

sternal biopsy  biopsy of bone marrow of the sternum removed by puncture or trephining.

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bi·op·sy (bps) n. Abbr. bx 1. The removal and examination of a sample of tissue from a living body for diagnostic purposes. 2. A specimen so obtained.

biopsy Top left to right: needle, excisional, and curettage biopsy procedures Bottom: punch excisional biopsy procedure

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Biopsy

Removal of a small piece of tissue for microscopic examination. This is done under local anesthesia and removed by either using a scalpel or a punch, which removes a small cylindrical portion of tissue.

Mentioned in: Abdominal Ultrasound, Actinomycosis, Acute Lymphangitis, Anal Cancer, Balantidiasis, Bladder Cancer, Blastomycosis, Bone Biopsy, Brain Abscess, Breast Cancer, Budd-Chiari Syndrome, Cervical Cancer, Cervical Conization, Choriocarcinoma, Colonoscopy, Colposcopy, Cryptococcosis, Endometrial Biopsy, Erythema Nodosum, Fibroadenoma, Head and Neck Cancer, Hepatitis, Autoimmune, Histiocytosis X, Hypogonadism, Immune Complex Test, Kidney Biopsy, Kidney Cancer, Laparoscopy, Leukemias, Chronic, Leukocytosis, Liver Biopsy, Liver Disease, Malabsorption Syndrome, Malignant Lymphomas, Mycetoma, Myelofibrosis, Neuroblastoma, Otitis Externa, Pancreatic Cancer, Endocrine, Pancreatic Cancer, Exocrine, Photosensitivity, Pneumocystis Pneumonia, Polycystic Kidney Disease, Primary Biliary Cirrhosis, Prostate Biopsy, Prostate-Specific Antigen Test, Rabies, Salivary Gland Tumors, Sigmoidoscopy, Stomach Cancer, Temporal Arteritis, Testicular Surgery, Thyroid Biopsy, Thyroid Cancer, Tumor Markers, Vulvar Cancer, Waldenström's Macroglobulinemia, Wilms' Tumor, Wilson Disease

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biopsy (bī´opsē),

n the removal of a tissue specimen or other material from the living body for microscopic examination to aid in establishing a diagnosis.

biopsy, aspiration,

n See aspiration, fine needle (FNA).

biopsy, excisional

n the removal of an entire lesion, usually including a significant margin of contiguous normal tissue, for microscopic examination and diagnosis.

biopsy, exploratory,

n an exploration combined with biopsy to determine method and degree of local extension, usually of bone or deep soft-tissue lesions.

biopsy, incisional

n the surgical removal of a selected mass of a lesion and adjacent normal tissue for microscopic examination and diagnosis.

biopsy, needle,

n See aspiration, fine needle (FNA).

biopsy, oral brush,

n brand name: OralCDx; a noninvasive procedure used to detect early oral cancer during which a sterile brush is rotated against the suspected lesion to obtain a tissue sample.

biopsy, punch,

n biopsy material obtained by use of a punch.

biopsy, shave,

n a biopsy of skin or mucosal tissue made by removing part or all of a lesion with a scalpel held parallel to the base of the lesion.

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biopsy

removal and examination, usually microscopic, of tissue from the living body. Biopsies are usually done to determine whether a tumor is malignant or benign; however, a biopsy may be a useful diagnostic aid in other disease processes such as infections.

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aspiration biopsy

biopsy in which tissue is obtained by application of suction through a needle attached to a syringe.

bite biopsy

instrumental removal of a fragment of tissue.

bone marrow biopsy

obtaining a sample of bone marrow, usually by needle aspiration, from a long bone, rib or sternum, for cytological examination.

Needle aspiration of bone marrow. By permission from Ettinger SJ, Feldman E, Textbook of Veterinary Internal Medicine, Saunders, 2004

brush biopsy

removal of cells and tissue fragments using a brush with stiff bristles (introduced through an endoscope). Effective in obtaining tissue samples from inaccessible places such as the renal pelvis.

closed biopsy

one carried out without access through an open incision such as a laparotomy. An example is a percutaneous, fine needle aspirate.

cone biopsy

biopsy in which an inverted cone of tissue is excised, as from the uterine cervix.

cytological biopsy

obtaining specimens of cells by various methods including irrigation of a hollow tube.

biopsy dart

an alternative to immobilization of large and wild animals; a dart which cuts a skin bipsy, then falls out. Limited to use for superficial lesions.

endoscopic biopsy

removal of tissue by appropriate instruments through an endoscope.

excisional biopsy

biopsy of tissue removed from the body by surgical cutting.

exploratory biopsy

a combination of exploratory surgery to determine size and location of a lesion and the taking of a biopsy.

fine needle biopsy

see needle biopsy (below).

hepatic biopsy

may be by transperitoneal incision, more commonly by percutaneous needle or trocar and cannula technique.

incisional biopsy

biopsy of a selected portion of a lesion.

needle biopsy

biopsy in which tissue is obtained by puncture of a tumor, the tissue within the lumen of the needle being detached by rotation, and the needle withdrawn.

punch biopsy

see punch biopsy.

Robson-Heggers biopsy

a procedure for the collection of a piece of tissue from an infected wound in order to determine the extent and the nature of the infection.

sternal biopsy

biopsy of bone marrow of the sternum removed by puncture or trephining (see also sternal puncture).

surface biopsy

sample of cells scraped from the surface of a lesion or obtained by impression smears.

surgical biopsy

one obtained during a surgical procedure.

synovial biopsy

by a needle biopsy technique or through an arthrotomy incision using special forceps for a bite biopsy.

total biopsy

obtained by removal of the entire lesion. May be for therapeutic as well as diagnostic purposes.

ultrasound-guided biopsy

use of ultrasonography to guide the passage of a needle or biopsy instrument into an internal organ or lesion.