Minimally invasive rotational excision of breast masses: This procedure can be performed under ultrasound or molybdenum palladium guidance, using a vacuum-assisted hollow-core needle rotational excision system for puncture biopsy of breast masses and treatment of benign breast tumors, with a small surgical wound of 0.3 cm, satisfactory cosmetic results, safe, effective and well-tolerated. It is suitable for the treatment of tumors <3cm in diameter. Relative contraindications include: 1. those with bleeding tendency, coagulation disorders and other hematopoietic diseases; 2. pregnant and lactating women; 3. those with infectious diseases; 4. those with small breasts and lesions close to the nipple, axilla or chest wall that cannot be easily removed; 5. those with breast implants. Absolute contraindications: 1, hollow-core needle biopsy suggests lobular cystic sarcoma or other malignant lesions; 2, poor ultrasound visualization of the lesion; 3, hollow-core needle aspiration biopsy for fibroadenoma, but does not match the image or the physician's physical examination.