brush biopsy


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biopsy

 [bi´op-se]
removal and examination, usually microscopic, of tissue from the living body, often to determine whether a tumor is malignant or benign; biopsies are also done for diagnosis of disease processes such as infections.
Technique for endometrial biopsy. Longitudinal strips of the endometrium are sampled using an in-and-out and rotational motion. From Rakel, 2000.
aspiration biopsy one in which tissue is obtained by application of suction through a needle attached to a syringe.
brush biopsy one in which the sample is obtained by a brush with stiff bristles introduced through an endoscope, such as for a tissue sample from an inaccessible place such as the renal pelvis or bronchus.
chorionic villus biopsy chorionic villus sampling.
cone biopsy one in which an inverted cone of tissue is excised, as from the uterine cervix.
endoscopic biopsy removal of tissue by instruments inserted through an endoscope.
excisional biopsy removal of biopsy tissue by surgical cutting, such as a lumpectomy.
fine-needle aspiration biopsy aspiration biopsy using a fine needle. For superficial tissue such as the thyroid, breast, or prostate the needle is unguided, but for deep tissue it must be guided radiologically.
incisional biopsy biopsy of a selected portion of a lesion.
needle biopsy (percutaneous biopsy) one in which tissue is obtained by insertion through the skin of a special type of needle (see biopsy needle).
punch biopsy one in which tissue is obtained by a punch-type instrument.
sentinel node biopsy biopsy of a sentinel node (the first lymph node to receive lymphatic drainage from a malignant tumor). It is identified as follows: a dye and a radioactive substance are injected into the body, which causes certain nodes to “light up” like a sentinel, indicating that they are the most appropriate ones for examination. They are detected by both the light created by the dye and the radioactive substance that is monitored by a gamma camera. If the sentinel nodes do not contain malignant cells, this usually eliminates the need for removal of more distal nodes. Called also intraoperative lymphatic mapping.
shave biopsy biopsy of a skin lesion by excising it with a cut parallel to the surface of the surrounding skin.
stereotactic biopsy biopsy of the brain using a stereotactic technique to locate the biopsy site. This can be done as a minimally invasive surgery technique. The patient's head is held in a special rigid frame so that a probe can be directed into the brain through a small hole in the skull.
sternal biopsy biopsy of bone marrow of the sternum removed by puncture or trephining; see also sternal puncture.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

brush biopsy

biopsy obtained by abrading the surface of a lesion with a brush to obtain cells and tissue for microscopic examination.
Farlex Partner Medical Dictionary © Farlex 2012

bronchial brushing

A procedure in which cells from the mucosa of the upper airways—trachea, bronchi, bronchioles—are obtained for cytologic evaluation under direct bronchoscopic visualisation of suspicious mucosal lesions. Bronchial brushing specimens are used to establish a diagnosis of malignancy and have a high degree of accuracy, comparing favourably with the biopsy in confirming the presence of malignancy; if used with a protected brush catheter, the relatively uncontaminated material can be cultured for various organisms.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

brush bi·op·sy

(brŭsh bī'op-sē)
Obtained by abrading the surface of a lesion with a brush to obtain cells and tissue for microscopic examination.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

brush bi·op·sy

(brŭsh bī'op-sē)
Use of a stiff brush to abrade surface cells of a lesion for automated microscopic analysis; generally used in screening for oral cancer.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The use of an oral brush biopsy without computer-assisted analysis in the evaluation of oral lesions: A study of 94 patients.
Low positive predictive value of the oral brush biopsy in detecting dysplastic oral lesions.
Furthermore, the trans-oral NP brush biopsy test helped detect five patients with nasopharyngeal cancer who were previously considered as not having the disease, as assessed by traditional endoscopy method.
The relevance of the high positive predictive value of the oral brush biopsy. Oral Oncol.
The brush biopsy report does not specify tissue type or location, stating only whether atypical cells or malignant cells were present.
"With the Tao Brush biopsy, you can put women's fears to rest, because they can go to their OB/GYN and painlessly undergo this test," Dr.
endobiliary brush biopsy and percutaneous core needle biopsy.
The brush biopsy or Oral CDx test has overcome this fatal shortcoming by screwing a bristle-covered wire (the "brush") through the thick surface keratin to the basal layer of the epithelium.
Sequential brush biopsy and conventional biopsy: direct comparison of diagnostic sensitivity in lung Malignancy.