Table 2.

Characteristics of missed cases

Case no.	Pathology	Size	Error category	Detailed cause of detection failure
1	Benign	6	Censored according to the location	Initially detected but removed (located within upper 10% height)
2	Benign	7.4	Censored according to the location	Initially detected but removed (located within upper 10% height)
3	Benign	5	Inaccurate detection or segmentation	Initially detected but removed (segmented smaller than its true size)
4	Benign	6	Inaccurate detection or segmentation	Not detected
5	Malignant	5	Inaccurate detection or segmentation	Initially detected but removed (segmented smaller than its true size)
6	Malignant	23	Censored according to the location	Initially detected but removed (located within right 10% width)