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Table 2 Characteristics of treatment and response by histology

From: Metaplastic breast cancer: a comparison between the most common histologies with poor immunohistochemistry factors

   MCBn(%) TN-ILCn(%) HG-IDCn(%) TN-IDCn(%) pvalue
  Amount received 24 37 48 48  
Ind CT   12 (50) 20 (54.1) 38 (79.2) 39 (81.3) <0.003
Response pPR 2 (16.7) 15 (75) 26 (65) 24 (61.5) <0.001
  pCR 3 (25.0) 2 (10.0) 12 (30) 11 (28.2)  
  Stable 1 (8.3) 1 (5) 0 2 (5.1)  
  Progression 6 (50) 2 (10) 2 (5) 2 (5.1)  
Surgery BCS 0 0 3 (6.3) 7 (14.6) 0.011
  MRM 22 (91.7) 24 (64.9) 38 (79.2) 37 (77.1)  
  No 2 (8.3) 13 (35.1) 7 (14.6) 4 (8.3)  
Adjuvancy Received 14 (58.3) 26 (70.3) 37 (77.1) 29 (60.4) 0.245
  CT 11 (45.8) 22 (59.5) 19 (39.6) 36 (75.0) 0.009
  RT 14 (58.3) 22 (59.5) 23 (47.9) 27 (56.3) 0.705
Recurrence No 15 (62.5) 13 (35.1) 28 (58.3) 29 (60.4) 0.094
  Recurrence 3 (12.5) 12 (32.4) 18 (37.5) 16 (33.3)  
  Progression 6 (25) 12 (32.4) 2 (4.2) 3 (6.3)  
  1. MCB: metaplastic carcinoma of the breast; TN-ILC: triple-negative invasive lobular carcinoma; HG-IDC: high-grade invasive ductal carcinoma; TN-IDC: triple-negative invasive ductal carcinoma; Ind CT: induction of chemotherapy; pPR: pathologic partial response; pCR: pathologic complete response; BCS: breast-conserving surgery; MRM: modified radical mastectomy; CT: adjuvant chemotherapy; RT: radiotherapy.