A Novel Fluorescent Ductal Needle for Localization and Sampling of Micro Lesions in Breast Ducts

This study is testing a new type of fluorescent needle for use during breast duct surgery. The needle is designed to help surgeons precisely locate and sample tiny lesions deep inside breast ducts that are otherwise difficult to find, potentially improving how early breast conditions are diagnosed and treated. **You may be eligible if...** - You are a woman aged 18–75 - You are scheduled to have a breast duct excision (removal) surgery - You are able to give written consent and follow the study procedures **You may NOT be eligible if...** - You are pregnant or breastfeeding - You have a known allergy to the needle's materials (quantum-dot components) - You have active hepatitis B or C with detectable virus in the blood - You have unstable heart disease or severe heart failure - You have a neurological or psychiatric condition that affects your ability to comply with the study - You are already in another interventional clinical trial Talk to your doctor to see if this trial is right for you.