Fig. 5

Lesions falsely classified as normal tissue using machine learning with the reduced feature set but correctly classified with the full feature set: invasive ductal carcinoma (maximal diameter 10 mm) in a 74-year-old patient (a) and fibroadenoma (maximal diameter 9 mm) in a 46-year-old patient (b). Lesion (a) was also falsely classified as benign in the comparison between malignant and benign lesions