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

Table 2 Lymphatic drainage patterns in all 136 patients with IBTR^a

	N = 136
Visualization on lymphoscintigraphy
Yes	121 (89.0%)
No	15 (11.0%)
Lymphatic drainage patterns
Ipsilateral axilla	90 (74.4%)
Aberrant drainage	57 (47.1%)
Internal mammary chain (IMC)	36 (29.8%)
Contralateral axilla	25 (20.7%)
Intramammary	9 (7.4%)
Supraclavicular	2 (1.7%)
Contralateral IMC	1 (0.8%)

Lymphatic drainage was visualized in 121 of 136 patients. Lymphatic drainage to ipsilateral axilla was visualized in 74% of patients. Aberrant drainage was visualized in five regions: internal mammary chain (IMC), supraclavicular, intramammary, contralateral axilla, and contralateral IMC
^aIBTR ipsilateral breast tumor recurrence

ISSN: 1748-717X