Table 1 : Regional Nodal Contours: Anatomical Boundaries according to RTOG.

  Cranial Caudal Anterior Posterior Lateral Medial

SCV Caudal to the cricoid cartilage Junction of brachioceph.-
axillary viens./ caudal edge
of clavicle head
Sternocleido-mastoid (SCM) muscle (m.) Anterior aspect of the scalene m. Cranial: lateral edge of
SCM m. Caudal: junction
1st rib-clavicle
Excludes thyroid and trachea
ICV Pec. Minor m. insert on cricoid Axillary vessels cross
medial edge of Pec.
Minor m.
Posterior surface Pec. Major m. Ribs and intercostal muscles Medial border of Pec.
Minor m.
Thoracic inlet

SCV: supraclavicular fossa;
ICV: infraclavicular fossa.

A Aboziada et al.Journal of Cancer Therapeutics and Research  2013 2:11DOI : 10.7243/2049-7962-2-11