Table 5.

Pathological Stage after Completion of Neoadjuvant Letrozole Therapy

Characteristic	Value
Pathologic tumor size (cm), median (range)	2.1 (0.0–12.2)
T stage, n (%)
T0	1 (1)
T1	39 (41)
T2	39 (41)
T3	13 (14)
T4	4 (4)
N stage, n (%)
N0	39 (41)
N1	34 (35)
N2	13 (14)
N3	8 (8)
Nx	2 (2)
Pathologic stage, n (%)
0	1 (1)
1	21 (22)
2A	22 (23)
2B	20 (21)
3A	18 (19.0)
3B	4 (4)
3C	8 (8)
Stage incomplete*	2 (2)
Tumor type, n (%)
Ductal	51 (53)
Lobular	30 (31)
Mixed	11 (12)
Other†	3 (3)
No residual tumor	1 (1)
Tumor grade, n (%)
1	30 (32)
2	57 (59)
3	8 (8)
No residual tumor	1 (1)

^*Because of lack of node evaluation.

^†Mucinous, 2 (2%); tubular, 1 (1%).