Table 3.
Architectural and stromal features
| Architectural features | 0 (%) | 1 (%) | 2 (%) | 3 (%) | Any (%) |
|---|---|---|---|---|---|
| Fused glands | 5 (4.3) | 21 (18.3) | 43 (37.4) | 46 (40) | 110 (95.7) |
| Cell clusters | 5 (4.4) | 37 (32.2) | 45 (39.1) | 28 (24.3) | 110 (95.7) |
| Small glands | 13 (11.3) | 28 (24.4) | 39 (33.9) | 35 (30.4) | 102 (88.7) |
| Cell cords | 20 (17.3) | 32 (27.8) | 37 (32.1) | 26 (22.6) | 95 (82.7) |
| Isolated cells | 31 (27) | 35 (30.4) | 31 (27) | 18 (15.7) | 84 (73) |
| Intraductal spread | 45 (39.1) | 43 (37.4) | 23 (20) | 4 (3.5) | 70 (60.9) |
| Cribriform pattern | 48 (41.7) | 38 (33) | 20 (17.4) | 9 (7.8) | 67 (58.3) |
| Solid sheets | 113 (98) | 2 (2) | 0 | 0 | 2 (2) |
| Stromal features | |||||
| Stromal increase | 2 (1.7) | 54 (47) | 52 (45.2) | 7 (6.1) | 113 (98.3) |
| Stromal hypervascularity | 8 (6.9) | 70 (60.9) | 35 (30.4) | 2 (1.7) | 107 (93.1) |
| Stromal hypercellularity | 33 (28.7) | 63 (54.8) | 18 (15.6) | 1 (0.9) | 82 (71.3) |
| Absent lining | 74 (64.3) | 28 (24.3) | 7 (6.1) | 6 (5.2) | 41 (35.7) |
| Stromal mucin | 82 (71.3) | 24 (20.9) | 5 (43.5) | 4 (3.5) | 33 (28.7) |
0 = absent; 1 = present to a minor degree; 2 = present to a considerable degree; 3 = present to an extensive degree.