What is the procedure called that utilizes a 14-gauge needle to remove tissue samples from the breast?

The procedure that employs a 14-gauge needle to extract tissue samples from the breast is referred to as a core biopsy. This method is specifically designed to obtain larger tissue samples compared to other techniques, allowing for further histological examination. During the procedure, the 14-gauge needle is inserted into the breast mass or abnormal area, and a core of tissue is collected. This larger sample is particularly beneficial for accurate diagnosis, as it retains the tissue architecture necessary for pathologists to assess the presence of any abnormalities, such as cancer.

Core biopsy is a more definitive method than fine needle aspiration, which uses a thinner needle and yields smaller samples that may not be sufficient for a conclusive diagnosis. Open surgical biopsy involves a more invasive technique that requires making an incision in the breast, while needle biopsy is a broader term that can encompass both fine needle aspiration and core biopsy. The specificity of using a 14-gauge needle is a hallmark characteristic of the core biopsy approach, making it the preferred method for certain clinical situations where detailed pathological analysis is crucial.