punch biopsy


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Related to punch biopsy: shave biopsy

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.

punch bi·op·sy

any method that removes a small cylindric specimen for biopsy by means of a special instrument that pierces the organ directly, or through the skin, or a small incision in the skin.
Synonym(s): trephine biopsy

punch biopsy

n.
1. The removal of a small cylindrical specimen of tissue for pathologic study by pressing a circular instrument into the skin or mucous membrane surrounding a lesion.
2. A specimen so removed.

punch biopsy

Surgical pathology A minor surgery performed in an outpatient setting or dermatology clinic, in which a hollow needle is used to obtain a 3 or 4 mm in diameter core–'punch' of skin, which is evaluated by LM. See Biopsy. Cf Shave biopsy, Skin biopsy.

punch bi·op·sy

(pŭnch bī'op-sē)
Any method that removes a small cylindric specimen for biopsy by means of a special instrument that pierces the organ directly or through the skin or a small incision in the skin.

Punch biopsy

A method of obtaining skin samples under local anesthesia using a surgical skin punch.
Mentioned in: Granuloma Inguinale

punch bi·op·sy

(pŭnch bī'op-sē)
Any method that removes a small cylindric specimen for biopsy by means of a special instrument that pierces the organ directly or through the skin or a small incision in the skin.
References in periodicals archive ?
International recommendations favour punch biopsy for most of the disorders, however, keeping in mind the limited resources, it can always be tailored to small incisional biopsies.
(8) Ng et al (9) found there was a significant increase in histopathologic misdiagnosis with a punch biopsy of part of a melanoma (odds ratio [OR]=16.6; 95% confidence interval [CI], 10-27; P<.001) and with shallow shave biopsy (OR=2.6; 95% CI, 1.2-5.7; P=.02) compared with excisional biopsy (including saucerization).
Punch biopsy demonstrated interface changes and a perivascular and periadnexal infiltrate involving the superficial and deep dermis (A) in association with irregular papillomatous epidermal hyperplasia (B).
The treatment was continued and there was complete recovery following third dose of doxorubicin which was confirmed by second punch biopsy from same site two weeks later which revealed only inflammatory changes with no evidence of neoplasia.
Tissue from the punch biopsy sample and mold cultures were sent to the Indiana State Department of Public Health Laboratories, where B.
Punch biopsy performed before initiating treatment may show hyperkeratosis of the epidermis, epidermal atrophy with loss of rete ridges, homogenization of the collagen in the upper dermis, and a lichenoid inflammatory infiltrate in the dermis.
punch biopsy) of CIN or if colposcopy was not possible.
In a related study, microscopy had sensitivity (71%) and specificity (77%) comparable with skin punch biopsy specimens (59% and 90%, respectively).
A punch biopsy may be necessary during the work-up.
The punch biopsy of the exhibited patient demonstrated a dome-shaped dermal nodule composed of fibroblasts in an edematous stroma.
Subsequent work-up included a staging magnetic resonance imaging (MRI) and a left areola punch biopsy. MRI revealed an absence of a normal left nipple and extensive focal clumped non-mass enhancement in the area of the known DCIS (FIGURE 4).
Punch biopsy was taken from back and histopathological examination (HPE) of hematoxylin and eosin-stained (HandE) section revealed basket weave orthokeratosis with a column of parakeratotic cells, the cornoid lamella, characteristic of porokeratosis.