Table.5.

Reports of recurrence of RLNs

	Total number	Number of RLN recurrences (%)	Stage	Pathology	Treatment	Radiologic criteria on metastatic RLN
Kimura et al. 1998	NR	2	T3N1M0, T3N0M0	SCC, ME	S + IART, S + AC	NR
Le et al. 2000	97	2 [2]	T3 or T4	NR	NR	NR
Umeda et al. 2005	22	1 [5]※	T2N0M0	SCC	S + IART	NR
Homma et al. 2014	98	2 [2]	T4N0M0	SCC	S + RT	NR
Jeon et al. 2017	71	1 [1]※	NR	NR	NR	NR

※contralateral side recurrence

SCC; squamous cell carcinoma, ME; mucoepidermoid cancer, S; surgery, IART; intraarterial chemotheraoy and radiation therapy