fine needle


fine needle
fine needle n a long thin hollow needle with a narrow bore used esp. to obtain samples by fine needle aspiration also a solid hairlike needle used in acupuncture

* * *

a very thin, highly flexible steel needle with a narrow inner core used to cannulate very small bile ducts to perform percutaneous (or fine needle) transhepatic cholangiography (see under cholangiography). Called also Chiba n. and skinny n.

Medical dictionary. 2011.

Look at other dictionaries:

  • Fine needle aspiration — The use of a thin needle to withdraw material from the body. For example, this method is commonly used to determine whether a nodule in the thyroid gland is benign or malignant. A fine gauge needle is placed into the nodule and a drop of blood is …   Medical dictionary

  • fine needle transhepatic cholangiography — (FNTC) transhepatic cholangiography performed by means of a very fine, highly flexible steel needle (fine needle) …   Medical dictionary

  • 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 …   Medical dictionary

  • fine-needle aspiration cytology — a technique that uses samples obtained by fine needle aspiration to provide information on the cells of tumours or cysts. It is useful for detecting the presence of malignant cells, particularly in lumps of the breast and thyroid. See also… …   Medical dictionary

  • fine-needle aspiration — n. (Pathology) FNA, removal of tissue or fluid or other material from the body with a fine needle for examination …   English contemporary dictionary

  • fine-needle aspiration cytology — FNA cytology a technique that uses samples obtained by fine needle aspiration to provide information on the cells of tumours or cysts. It is useful for detecting the presence of malignant cells, particularly in lumps of the breast and thyroid.… …   The new mediacal dictionary

  • fine-needle aspiration — The removal of tissue or fluid with a needle for examination under a microscope. Also called needle biopsy …   English dictionary of cancer terms

  • fine-needle aspiration — see under biopsy …   Medical dictionary

  • testicular fine-needle aspiration — a type of testicular sperm extraction in which sperm is retrieved from the testicle by fine needle aspiration, done in men with obstructive azoospermia …   Medical dictionary

  • needle biopsy — n any of several methods (as fine needle aspiration or core biopsy) for obtaining a sample of cells or tissue by inserting a hollow needle through the skin and withdrawing the sample from the tissue or organ to be examined * * * biopsy in which… …   Medical dictionary