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Table 2 Histopathologic and molecular characteristics of tumors in this study

From: Clustering subtypes of breast cancer by combining immunohistochemistry profiles and metabolism characteristics measured using FDG PET/CT

Characteristics Positive case (%) or mean ± SD
Size (cm) 1.94 ± 1.56
Lymphatic invasion 46 (15.9 %)
Venous invasion 2 (0.7 %)
Perineural invasion 10 (3.5 %)
ER 227 (78.5 %)
PR 212 (73.4 %)
HER2 71 (24.6 %)
CK5/6 127 (43.9 %)
p53* 27.2 ± 34.8
Ki-67* 19.4 ± 21.8
EGFR 44 (15.2 %)
  1. CK5/6, cytokeratin 5/6; EGFR, epidermal growth factor receptor; ER, estrogen receptor; PR, progesterone receptor; *upper bound value of positive cell population (%)