Altered lymphatic drainage patterns in re-operative sentinel lymph node biopsy for ipsilateral breast tumor recurrence

Table 1 Characteristics of patients with primary breast cancer and ipsilateral breast tumor recurrence

	N = 136
Ipsilateral breast tumor recurrence
Median age (years old)	55 (30–79)
Median disease-free interval (months)^a	67 (10–233)
Clinical T stage
Tis	30
T1	90
T2	15
T3	1
Median follow-up period (months)	141 (32–315)
At primary surgery
Median age (years old)	47 (22–76)
Clinical T stage of primary breast cancer
Tis	23
T1	72
T2	34
T3	5
unknown	2
Surgery for axilla
no axillary surgery	12
SLNB^b	69
ALND^c	55
Adjuvant radiotherapy (RT)
Without RT	92
With RT	44

^adisease-free interval: the interval from primary surgery until the day ipsilateral breast tumor recurrence was diagnosed
^b SLNB: sentinel lymph node biopsy
^c ALND: axillary lymph node dissection

ISSN: 1748-717X