Fine needle aspiration is a type of biopsy procedure. In fine needle aspiration, a thin needle is inserted into an area of abnormal-appearing tissue or body fluid. As with other types of biopsies, the ...

A wide variety of masses in the head and neck, including those in the major salivary glands, can be approached by fine needle aspiration. In many instances, a correct definitive diagnosis con be ...

A cyst is a sac of tissue containing fluid or air that can form in many areas of the body. Cysts often do not need to be removed unless they are causing pain or other problems. There are several ...