Table 1.

Clinicopathologic characteristics in premenopausal patients with primary invasive breast cancer

Characteristic	N = 24
Age at diagnosis, years—median (range)	32.0 (21–35)
Tumor size, mm—median (range)	20.5 (10–45)
Tumor stage, no. (%)
pT1	11 (45.8)
pT2	12 (50.0)
pT3	1 (4.2)
pT4	0 (0.0)
Lymph node involvement, no. (%)
pN0	13 (54.2)
pN1	11 (45.8)
Scarff-Bloom-Richardson grade, no. (%)
I	2 (8.3)
II	9 (37.5)
III	13 (54.2)
Histological subtype, no. (%)
Ductal	23 (95.8)
Lobular	1 (4.2)
Estrogen receptor, no. (%)
Negative	12 (50.0)
Positive	9 (37.5)
Unknown	3 (12.5)
Progesterone receptor, no. (%)
Negative	15 (62.5)
Positive	6 (25.0)
Unknown	3 (12.5)