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

Table 3 Visualization on lymphoscintigraphy according to hormone receptor and HER2 status of primary tumor and IBTR

	Visualization on lymphoscintigraphy (N = 136)
	Yes	No	P
a. Primary breast cancer
ER^a
Positive	54	3	ns^d
Negative	25	6	ns^d
DCIS^b	26	2
unknown	16	4
PgR^c
Positive	46	5	ns
Negative	32	4	ns
DCIS	26	2
Unknown	17	4
HER2
3+	8	0	ns
2+	5	0
1+, 0	40	6
DCIS	26	2
Unknown	42	7
b. Ipsilateral breast tumor recurrence
ER
Positive	64	10	ns
Negative	26	2	ns
DCIS	29	2
Unknown	2	1
PgR
Positive	46	7	ns
Negative	44	5	ns
DCIS	29	2
unknown	2	1
HER2
3+	10	0	ns
2+	0	0
1+, 0	78	12
DCIS	29	2
Unknown	4	1

The visualization on lymphoscintigraphy was not associated with hormone receptor status and HER2 status of both primary cancer and IBTR
^aER: estrogen receptor
^bDCIS: ductal carcinoma in situ
^cPgR: progesterone receptor
^dns: no significant difference

ISSN: 1748-717X