Breast knot. During fine-needle aspiration, a special needle is inserted into a breast lump and any fluid is removed aspirated. What You Need to Know Sep 27, Breast lumps. Caring for a Loved One With Cancer. A study in macaques reveals that targeting a brain region with noninvasive, low-intensity ultrasound can alter a specific decision-making process. Below are some common breast symptoms and what they might mean. Can you please help me? In these cases the pain is not related to the menstrual cycle. We wish you the best.