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

Etymology: L, pungere, to prick; Gk, bios, life, opsis, view
the removal of living tissue for microscopic examination, usually bone marrow aspirates from the sternum, by means of a punch. Compare exfoliative cytology, needle biopsy.
enlarge picture
Punch biopsy on the ear

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.

punch biopsy,

n the removal of tissue for diagnostic purposes using a sharp, cylindrical, hollow instrument placed over the tissue to be excised and rotated with slight pressure until an incision of proper depth is achieved. The tissue within the incision is lifted, and the base is excised with a scissor or scalpel blade.

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.

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.
Enlarge picture
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.

punch

a metal, rodlike instrument with one pointed or cavitied end and one propulsion end to be pushed hard with the palm of the hand or driven with a hammer in order to drive a hole or to excise a small round piece of tissue.

punch biopsy
a circular piece of skin excised by a hand driven biopsy punch. See also keyes punch.
dental punch
has a slight cavity at the end so that the tooth to be driven will seat into the end and not slip off.
punch graft
see punch graft.
References in periodicals archive ?
Polydefkis and his associates found that epidermal nerve fiber density (ENFD) in skin punch biopsy specimens was a good marker of early neuropathy.
The transoral punch biopsy revealed vascular proliferation with eosinophilia, which was suggestive of both Kimura's disease and ALHE.
A 4-mm punch biopsy of the scalp sectioned horizontally showed considerable reduction in terminal hairs and a relative increase in vellus-like hairs.
Skin punch biopsy specimens of 6mm were obtained at baseline, day 15 and day 29 of the study.
Examination revealed the presence of leukoplakia on the left anterior tonsillar pillar; a punch biopsy of the pillar showed mild chronic inflammation.
However, a tiny punch biopsy of involved skin can clearly diagnose a pigment allergic reaction.
After creation of the burns, a punch biopsy was taken from both sides of the dorsal midline to determine the depth of each burn.
A summary of the HUMARA assay divided into those that yielded monoclonal, nonclonal, or uninformative results for each punch biopsy size (ie, 2, 3, 4, or 5 mm) is provided in the Table.
Analysis of a punch biopsy of the mass revealed the presence of interlaced fascicles of spindle cells, eosinophilic cytoplasm, and blunt-ended hyperchromatic nuclei.
A punch biopsy of the lesion showed multinucleated giant cells and spherules with endospores consistent with C.
A 3-mm skin punch biopsy from the left dorsal foot lesion on October 19 showed histologic features (see below) thought to be morphologically consistent with Aspergillus infection.
An initial punch biopsy of the mass under local anesthesia via the oropharynx identified a squamous metaplasia with mild to moderate dysplasia.