biopsy Full Definition
|biopsy – /ˈbʌɪɒpsi/ – noun [ Medical Test ]|
: an examination of tissue removed from a living body to discover the presence, cause, or extent of a disease.
: conduct a biopsy on (tissue removed from a living body) – verb
: the removal of cells or tissues for examination by a pathologist. The pathologist may study the tissue under a microscope or perform other tests on the cells or tissue. There are many different types of biopsy procedures. The most common types include:
1) incisional biopsy, in which only a sample of tissue is removed;
2) excisional biopsy, in which an entire lump or suspicious area is removed; and (3) needle biopsy, in which a sample of tissue or fluid is removed with a needle. When a wide needle is used, the procedure is called a core biopsy. When a thin needle is used, the procedure is called a fine-needle aspiration biopsy.
: removal and pathologic examination of specimens in the form of small pieces of tissue from the living body.