Patterns of cervical lymph node metastasis from squamous carcinomas of the upper aerodigestive tract

摘要: A consecutive series of 1,081 previously untreated patients undergoing 1,119 radical neck dissections (RNDs) for squamous carcinoma the head and was reviewed to study patterns nodal metastases. Primary tumors were located in oral cavity 501 patients, oropharynx 207 hypopharynx 126 larynx 247 patients. Lymph node metastases confirmed histologically 82% 776 therapeutic dissections, micrometastases discovered 33% 343 elective RNDs. groups described by levels (I V). Predominance certain seen each primary site. Levels I, II, III at highest risk metastasis from cancer cavity, III, IV carcinomas orpharynx, hypopharynx, larynx. Supramohyoid dissection (clearing III) NO with cell anterolateral IV) oropharynx, are recommended.