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Table 3 Characteristics on breast IMPC and IDC in previous seven reports and the present study

From: Invasive micropapillary carcinoma of the breast had poor clinical characteristics but showed no difference in prognosis compared with invasive ductal carcinoma

Author Published time No. of cases Component of IMPC Criteria of eligible patients ER and PR Nodal metastases Lymphovascular invasion
IMPC IDC
Chen [4] 2008 100 100 Mixed Randomly selected Lower Lower \
Yu [8] 2010 72 144 Pure or more than 70 % Age, pathologic tumor and node stage, treatment methods Higher Higher Higher
Vingiani [14] 2013 49 98 Pure Age, tumor size and grade Higher Higher Higher
Liu [9] 2014 51 102 Pure Nodal status and age Higher Higher Higher
Shi [7] 2014 188 1289 mixed Simple random sampling Higher Higher Higher
Chen [10] 2014 636 297735 unknown The same study period Higher Higher \
Yu [16] 2015 267 267 Mixed Age, pathologic tumor and node stage, treatment method Similar Similar Higher
Present study \ 33 347 Mixed The same study period Higher Higher Higher
  1. NO number, IMPC invasive micropapillary carcinoma, IDC invasive ductal carcinoma, ER estrogen receptor, PR progesterone receptor