Table 2.
Pathological Features of DCIS in AA and CA Patients
| AA | CA | P | |
|---|---|---|---|
| Tumor Size, mean, cm | 1.83 | 1.15 | .001 |
| Grade (%) | NS | ||
| I | 78 (37) | 43 (31) | |
| II | 80 (38) | 47 (34) | |
| III | 53 (25) | 48 (35) | |
| Architectural pattern (%) | NS | ||
| Mixed | 79 (37) | 44 (32) | |
| Solid | 62 (29) | 49 (35) | |
| Cribriform | 45 (21) | 33 (24) | |
| Micropapillary | 20 (9) | 9 (7) | |
| Papillary | 7 (3) | 2 (1) | |
| Extension into lobules (% cases) | 43 (24) | 26 (23) | NS |
| Central necrosis (% cases) | 107 (55) | 83 (63) | NS |
| Microcalcifications (%) | .001 | ||
| In DCIS | 138 (70) | 72 (55) | |
| In benign tissue | 39 (20) | 43 (33) | |
| Absent | 20 (10) | 15 (12) | |
| Lymph node metastases, No. of cases | 2 | 1 | — |
AA indicates African American; CA, Caucasian American; NS, not significant; DCIS, ductal carcinoma in situ.