根据显微病理学研究，对于五年以上头颈恶性肿瘤经历颈廓清手术患者的颈部标本进行了回顾性综述。患者术前行放疗或化疗的除外，在135例患者的164个颈部标本中，（2例行双侧颈廓清术），85个右侧，79个左侧颈部标本。由显微镜记录淋巴结数目，根据颈廓清类型分为4组，第一组为5 According to the microscopic pathology, a retrospective review of cervical specimens from patients with head and neck malignancies undergoing neck dissection for more than five years was conducted. Except for preoperative radiotherapy or chemotherapy, in 164 neck specimens of 135 patients (2 bilateral neck dissection), 85 right and 79 left neck specimens. The number of lymph nodes was recorded microscopically and divided into 4 groups according to the type of neck clearance. The first group was 5