Study on oral cancer with extranodal metastasis of the neck.

概要

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Sixty-one squamous cell carcinomas of the oral cavity with extranodal cervical lymph node metastasis were retrospectively analyzed in our clinic between 1976 and 1993, and the following results were obtained : Forty cases simultaneously underwent immediate neck dissection including resection of the primary tumor, while the other twenty-one cases underwent subsequent neck dissection due to secondary metastases in the neck. A large number of cases involved nodes: more than three nodes were observed in most cases, and the number of involved nodes with extranodal spread was one or two in 54 of 61 cases, or approximately 90%. Regarding the prevalence of involved nodes with extranodal spread according to the neck levels proposed by UICC, thirty-one cases involved levels higher than level 2. Ten of twelve cases in which only neck recurrence was seen revealed extranodal metastases at level 2.<BR>Early detection of metastasis at level 2 is important for the prevention of extranodal spread. Adjuvant therapy, such as post-operative radiotherapy, may be beneficial in such cases.
一般社団法人日本口腔腫瘍学会の論文