Table 2.

Detailed patient characteristics for patients staged cN0 (n = 5) where pathological staging revealed metastatic lymph nodes

Patient	Age	Gender	Location	Tumor lateralization	cT	pT	cN	pN	LN side	LN details
Pt1	64	F	Supraglottis	Lateralized left	2	1	0	1	left	Level 1 (1 LN, micrometastasis < 1 mm)
Pt2	77	M	Supraglottis	Not lateralized	3	3	0	2b	left	Level 1 (2 LN, metastases both < 10 mm)
Pt3	70	M	Supraglottis	Not lateralized	4a	4a	0	2c	bilateral	Level IIa right (1 LN, cystic metastasis), Level IIa left (1 LN, 8 mm)
Pt4	64	F	Supraglottis	Not lateralized	2	3	0	2c	bilateral	Level II left (1 LN 16 mm) Level III left (1 LN) 14 mm, Level III right (1 LN metastasis)
Pt5	68	M	Supraglottis	Not lateralized	4	4a	0	3b	left	Level II (2 metastases), Level III (2 metastases, 1 ENE +)

F female, M male, LN lymph node, ENE extra nodal extension