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Table 1 Patient Characteristics

From: Internal mammary lymph node recurrence: rare but characteristic metastasis site in breast cancer

  Patients
Characteristic N %
Age (years)   
   Median (range) 47 (23-72)
Menopausal stastus   
   Premenopausal 55 41.4
   Postmenopausal 78 58.6
Histologic type   
   Invasive ductal carcinoma 125 94.0
   Invasive lobular carcinoma 5 3.8
   Medullary carcinoma 3 2.2
Primary tumor location   
   Areola and inner area 61 45.9
   Outer area 72 54.1
Primary tumor size (cm)   
   Median (range) 2.5 (1-7)
   ≤2 42 31.6
   >2 91 68.4
Anxillary lymph node (ALN)   
   negative 62 46.6
   positive 71 53.4
TNM stage   
   I - II 104 78.2
   III 29 21.8
ER/PR status   
   Positive 78 58.6
   Negative 55 41.4
HER-2 status   
   Positive& 29 19.5
   Negative 104 80.5
Adjuvant chemotherapy   
   Yes 124 93.2
   No 9 6.8
Adjuvant radiotherapy #   
   Yes 21 15.8
   No 112 48.2
  1. & HER-2 positive was defined as +++ by IHC method and/or FISH positive.
  2. #Adjuvant radiotherapy field included chest wall and supraclavicular area, and 10-Gy boost was delivered to the tumor bed