Table 2.
Characteristics of the invasive cancer cases discovered at definitive excision, after original diagnosis of pure DCIS by core-biopsy
| Invasive Tumor Size a (cm) | DCIS Tumor Size (cm) | Invasive Tumor Grade a | Invasive Pathology Type | Original Presentation | Lymph Node Status |
|---|---|---|---|---|---|
| <0.1 | 4.5 | - | Microinvasiveb ductal | Nipple discharge | (-) |
| <0.1 | 4.1 | - | Microinvasiveb ductal | Calcifications | (-) |
| 0.2 | 3.8 | II | Ductal | Calcifications | (-) |
| 0.2 | 0.5* | II | Ductal | Calcifications | (-) |
| 0.2 | 2* | - | Ductal | Palpable Mass | (+) |
| 0.3 | 6 | I | Ductal | Calcifications | (-) |
| 0.6* | 0.9 | II | Ductal & lobular | Calcifications | (-) |
| 0.8 | 2.8 | I | Ductal | Palpable Mass | (-) |
| 1.1 | 2 | II | Ductal | Calcifications | (-) |
| 1.3* | 9 | II | Ductal | Calcifications | (+) |
| 2.5 | 2.5 | II | Mixed lobular & ductal | Calcifications | (+) |
| 4 c | 6 | II | Ductal | Palpable Mass | (+) |
| 4 d | 8.1 | I | Ductal | Calcifications | (+) |
*
Several foci present, largest focus diameter reported.
a
Scarff-Bloom-Richardson grade
b
“Microinvasive” is defined as foci of invasion through the basement membrane measuring less than 1 mm.
c
Pathology required immunohistochemical studies to properly evaluate the case and establish the diagnosis of microinvasion throughout the region.
d
Imaging was compromised by foreign body injections into the breasts and pectoralis muscles.