Table 1.
Characteristics of the whole slide images (WSI) scanned in the routine diagnostic practice and showed missing tissues (number = 4268).
| Parameters | Cases with missing tissue | |
|---|---|---|
| n | % | |
| Type of missed tissue | ||
| Fat and blood vessels | 4268 | 100 |
| Normal Ducts/TDLUs | 1760 | 7.9 |
| Benign lesions | 0 | 0 |
| In situ carcinoma | 0 | 0 |
| Invasive carcinoma | 0 | 0 |
| Site of missed tissue | ||
| Peripheral only | 3337 | 78.2 |
| Central and peripheral | 931 | 21.8 |
| Type of specimens | ||
| Resection specimens | 4268 | 100 |
| Core needle biopsy | 185 | 0 |
| Date of scanning | ||
| Earlya | 2068 | 48.5 |
| Late | 2200 | 51.5 |
| Change in final diagnosis | ||
| Yes | 0 | 0 |
| No | 4268 | 100 |
TDLU terminal duct lobular unit.
aFirst 3 months after installation and the use of the scanner.