punch biopsy - definition of punch biopsy in the Medical dictionary - by the Free Online Medical Dictionary, Thesaurus and Encyclopedia.

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

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obtained by puncture of a tumor, the tissue within the lumen of the needle being detached by rotation, and the needle withdrawn.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

punch biopsy (p

nch)

Removal of a small cylindrical biopsy specimen by means of an instrument that either directly pierces the tissue or enters 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 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.

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.

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.

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. Cf Biopsy. Cf Shave biopsy, Skin biopsy.