Guidelines for delineation of lymphatic clinical target volumes for high conformal radiotherapy: head and neck region

Table 4 Lymph node level (adapted to [17])

Lymph node level	Terminology	Lymph node regions	Figure
level IA	submental	LN submentales	3
level IB	submandibular	LN submandibulares	3
level IIA	ventral upper jugular group	LN ventrales jugulares superiores	2-6
level IIB	dorsal upper jugular group	LN dorsales jugulares superiores	4
level III	mediales jugular group	LN jugulares mediales	3-4, 6-7
level IV	lower jugular group	LN jugulares inferiores	6
level VA	posterior triangle group	LN cervicales posteriors profundi	8
level VB	posterior triangle group	LN supraclaviculares	8
level VI	anterior compartment	LN cervicales anteriores superficiales	6
		LN cervicales anteriores profundi:	7
		- LN infrahyoidales
		- LN prelaryngeales
		- LN pretracheales
		- LN paratracheales
		- LN thyroidei
level retropharyngeal	retropharyngeal	LN retropharyngeales	5
level parotidal	parotidal	LN parotidei superficiales	2
		LN parotidei profundi
level retroauricular	retroauricular	LN retroauriculares	4
level occipital	occipital	LN occipitales	4
level buccal	buccal	LN faciales	3
level external jugular	external jugular	LN cervicales laterales superficiales	4

ISSN: 1748-717X