Results: The ultrasound images of the dysplasic mammary glands were classified as 5 types: lobular hyperplasia, duct hyperplasia, galtioncus, focal fibrosis and fibroadenomatoid hyperplasia.

• 结果：乳腺结构不良的超声图像可以分为5型：小叶增生型、导管增生型、囊肿型、局灶性纤维化型和纤维腺瘤样增生型。