December 5, 2001

Needle Biopsy


Removal of fluid, cells, or tissue with a needle for examination under a microscope. There are two types: fine needle aspiration (FNA) and core biopsy. FNA uses a thin needle and syringe to pierce the skin and draw up fluid or small tissue fragments from a cyst or tumor. A core needle biopsy uses a thicker needle to remove a cylindrical sample of tissue from a tumor.

Tags: Cancer Dictionary, N, Uncategorized