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[Metastasis in oral squamous cell carcinoma]
Zhonghua Yi Xue Za Zhi = Chinese Medical Journal; Free China Ed
|December 1, 1991
Summary
Metastasis evaluation is crucial for head and neck cancers. Oral squamous cell carcinoma frequently metastasizes to lymph nodes, with higher rates in advanced stages and specific primary tumor locations.
Area of Science:
- Oncology
- Head and Neck Surgery
- Oral Pathology
Context:
- Head and neck malignancies necessitate precise metastasis evaluation.
- Oral squamous cell carcinoma (OSCC) constitutes over 90% of oral cavity malignancies.
- Patient demographics and disease presentation impact management strategies.
Purpose:
- To analyze the incidence and patterns of metastasis in oral squamous cell carcinoma patients.
- To investigate correlations between tumor location, AJCC staging, and metastatic spread.
- To understand the implications of patient socio-economic factors on disease presentation and follow-up.
Summary:
- This study reviewed 330 OSCC patients, identifying the tongue as the most common primary site (31.2%).
- Regional lymph node metastasis occurred in 49.4% of cases, significantly correlated with primary tumor location (e.g., lower rates for palate/lip).
- Distant metastases were found in 4.2% of patients, increasing with advanced AJCC staging (6.2% for stages III-IV), with lungs being the most common site.
Impact:
- Findings highlight the high incidence of regional lymph node metastasis in OSCC.
- The study underscores the importance of primary tumor site in predicting metastatic risk.
- Delayed presentation due to poor awareness and socio-economic factors contributes to advanced disease.