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Table 1 Pathological types of benign lesions and malignant lesions

From: Application of ultrasound artificial intelligence in the differential diagnosis between benign and malignant breast lesions of BI-RADS 4A

  Pathological types n %
Benign lesions Adenosis 67 38.5
Benign phyllodes tumour 6 3.4
Fibroadenoma 68 39.1
Inflammation 8 4.6
Intraductal papilloma 20 11.5
Complex cyst 5 2.9
Malignant lesions Intraductal carcinoma in situ 12 37.5
Intraductal papillary carcinoma 2 6.3
Invasive ductal carcinoma 18 56.2