Processing core biopsy samples usually takes longer than with FNA biopsies, so getting the results of these tests also might take longer. (For more on this, see our breast biopsy information.)Īn advantage of this type of biopsy is that it removes more tissue than an FNA, still without needing surgery. Like FNA, a core biopsy can be used to sample tumors that the doctor can feel, as well as some that can only be seen using imaging tests.ĭoctors sometimes use special vacuum tools to get larger core biopsies from breast tissue. They remove a small cylinder (“core”) of tissue.Ī core needle biopsy (CNB) is most often done using local anesthesia (numbing medicine) in a doctor’s office or clinic. Needles used in a core biopsy are slightly larger than those used in FNA. ![]() The main disadvantage is that sometimes the thin needle can’t remove enough tissue to make a definite diagnosis (or to do other lab tests that might be needed).Īlthough FNA is a type of biopsy, it can also be considered a type of cytology test. The main advantages of FNA are that the skin doesn’t have to be cut, and in some cases it’s possible to make a diagnosis the same day. If the tumor is deeper inside the body, the needle can be guided into place using an imaging test such as an ultrasound or CT scan.įNA biopsies usually don’t cause too much discomfort, but if the tumor is in a sensitive area, the doctor may inject local anesthesia (numbing medicine) under the skin near the tumor before the biopsy is done. If the tumor is near the surface of the body, the doctor can aim the needle while feeling the lump. Fine needle biopsy (also called fine needle aspiration, or FNA)įine needle aspiration (FNA) uses a very thin, hollow needle attached to a syringe to withdraw (aspirate) a small amount of fluid and very small pieces of tissue from the tumor.There are 2 main types of needle biopsies: ![]() In a needle biopsy, a hollow needle is used to remove small biopsy samples. For more details, go to the testing information on the specific type of cancer you want to learn about. The most common biopsy types used to look for cancer are discussed here. These biopsies might done by surgeons as well, but they can also be done by other types of doctors. ![]() For other types of biopsies, small tumor samples are removed using a hollow needle or through an endoscope (a flexible lighted tube that’s put into the body). ![]() These biopsies are usually done by a surgeon. In some cases, the best type of biopsy might require some type of surgery to remove part or all of an abnormal area, or even an entire organ. For instance, the methods used for skin biopsies are different from those used for brain biopsies. How the samples are removed depends on where the abnormal area is, what type of cancer is suspected, and why the biopsy is being done. In fact, cancer is almost always diagnosed through a biopsy. Biopsy samples of cells or body tissues can be taken from almost any part of the body and used to help diagnose cancer.
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