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Analysis of false-negative diagnosis of mammography (n = 30), sonography (n = 20) and MR mammography (n = 10) for 185 invasive cancers
| Cancer | MR | ||
| characteristics | Mammography | Sonography | mammography |
| Tumour stage | |||
| 1a | 1 | 4 | 3 |
| 1b | 8 | 5 | 2 |
| 1c | 11 | 6 | 3 |
| 2 | 6 | 2 | 2 |
| 3 | 1 | 1 | 0 |
| 4 (inflammatory) | 3 | 2 | 0 |
| Histological type | |||
| Ductal | 15 | 13 | 2 |
| Lobular | 11 | 3 | 4 |
| Others | 4 | 4 | 4 |
| Grading | |||
| 1 | 2 | 3 | 1 |
| 2 | 10 | 6 | 5 |
| 3 | 18 | 11 | 4 |
