patients who underwent therapeutic or elective radical neck dissection at memorial sloan-kettering cancer center between 1960 and 1966 developed recurrence of cancer in the dissected neck in 36.5 % of the cases when metastatic carcinoma was present in the cervical lymph nodes at one level , and in 71.3 % when metastases were present at multiple levels .
C0034542
radical neck
C0588054
cervical lymph nodes