medical test involving extraction of sample cells or tissues for examination to determine the presence or extent of a disease

A biopsy is a test in medicine where doctors remove cells and look at them closely under a microscope or do chemical analysis to see whether there is an illness.[1]

A brain biopsy.
Lung biopsy guided by computertomography: Lung cancer



Biopsy is a Greek word, from the Greek words bio meaning "life" and opsia meaning see.[2][3]


  1. "Biopsat". DocCheck Flexikon (in German).
  2. "biopsy | Origin and meaning of biopsy by Online Etymology Dictionary".
  3. "Liquid Biopsy: Flüssige Biopsie" (PDF). Archived from the original (PDF) on 2019-01-21. Retrieved 2021-09-20. {{cite web}}: More than one of |archivedate= and |archive-date= specified (help); More than one of |archiveurl= and |archive-url= specified (help)