[Relationship between extracapsular spread of cervical metastatic lymph node and cervical recurrence in oral cancer patients].

Objective: To investigate the relationship between extracapsular spread (ECS) of cervical metastatic lymph node and the recurrence in patients with oral squamous cell carcinoma (OSCC).

Methods: The medical records of 74 OSCC patients with histologically confirmed cervical lymph node metastasis were reviewed. They were divided into 2 groups, ECS positive (ECS+) and ECS negative (ECS-).

[The impacts of various types of neck dissection on postoperative shoulder function for patients with oral squamous cell carcinoma].

Objective: To compare the impact of various types of neck dissection on postoperative shoulder function.

Methods: The shoulder functions of 66 patients with oral squamous cell carcinoma (OSCC) and cN0 necks who underwent various types of neck dissection were evaluated by Constant's shoulder function test and neck dissection impairment index at least 12 months after surgery.

Results: The patients with accessory spinal nerve reserved had better shoulder function than those with accessory spinal nerve resected.

[Analysis on occult micrometastasis in levels III - IV of cN0 neck in patients with oral tongue squamous cell carcinoma].

Objective: To investigate the frequency of micrometastasis in levels lII - IV of clinical negative neck (cN0) in patients with squamous cell carcinoma (SCC) of oral tongue, and to discuss the management of cervical lymph node for cN0 tongue SCC.

Methods: A total of 471 cervical lymph nodes derived from 25 patients with cN0 tongue SCC, including 263 lymph nodes in level III and 208 lymph nodes in level IV, were included in this study. All lymph nodes were re-examined by anti-cytokeratin (CK) immunohistochemical staining combined with semi-serial section per 500 microm.