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Table 3 Clinicopathologic features of 126 patients with neuroendocrine carcinoma of the breast in China

From: Neuroendocrine carcinoma of the breast: a review of 126 cases in China

Characteristic No. of cases (%)
Age (years)
 <50 26 (20.6)
 50–59 19 (15.1)
 60–69 11 (8.7)
 70–79 7 (5.6)
 Data unstratified 63 (50.0)
Gender
 Female 119 (94.4)
 Male 7 (5.6)
Symptom
 Breast lump 124 (98.4)
 Bloody nipple discharge 6 (4.8)
 Nipple erosion 1 (0.8)
 Dimple sign 1 (0.8)
 Skin ulceration 1 (0.8)
Diagnostic examination
 Biopsy before surgery 25 (19.8)
 Breast ultrasound 85 (67.5)
 Mammography 66 (52.4)
 Breast MRI 1 (0.8)
 Chest X-ray 39 (31.0)
Whole body check
 Abdominal ultrasound 60 (47.6)
 Abdominal CT 1 (0.8)
 Chest CT 1 (0.8)
 Pelvic ultrasound 7 (5.6)
 PET/CT 1 (0.8)
Histology
 Well-differentiated (non-small cell) 52 (41.3)
 Poorly-differentiated (small cell) 26 (20.6)
 NM 48 (38.1)
T category
 T1 29 (23.0)
 T2 39 (31.0)
 T3 24 (19.0)
 T4 8 (6.3)
 NM 26 (20.6)
N category
 N0 49 (38.9)
 N1 12 (9.5)
 N2 6 (4.8)
 N3 1 (0.8)
 NM 58 (46.0)
M category
 M0 122 (96.8)
 M1 4 (3.2)
TNM stage
 I 30 (23.8)
 II 60 (47.6)
 III 14 (11.1)
 IV 4 (3.2)
 NM 18 (14.3)
Estrogen receptor status
 Positive 102 (81.0)
 Negative 23 (18.2)
 NM 1 (0.8)
Progesterone receptor status
 Positive 91 (72.2)
 Negative 34 (27.0)
 NM 1 (0.8)
HER2 status
 Overexpressed 19 (15.1)
 Not overexpressed 104 (82.5)
 NM 3 (2.4)
  1. MRI magnetic resonance imaging, CT computed tomography, PET positron emission tomography, HER human epidermal growth factor receptor, NM not mentioned