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What is the target in elective neck irradiation?
•
Cervical lymph node levels -
“groups the lymph nodes based on anatomic
landmarks that can be consistently identified
on cross-sectional imaging”.
•
Cervical lymph node levels:
•
Surgery
(Shah et al.
Clin Bull
1981)
•
Radiology
(Som et al.
Arch Otolaryngol
Head Neck Surg
1999)
•
Radiation therapy
(Gregoire et al.
Radiat
Oncol
2003)