Abstract
The relation between extracapsular cervical lymph node extension (ECLNE) and clinicopathological prognostic factors was investigated retrospectively in 19 patients with oral squamous cell carcinoma who had undergone radical neck dissection from 1981 through 1996 at our department.The results were as follows:1. Forty-eight patients (52.2%), 102 lymph nodes (8.9%), had cervical lymph node metastasis; in 19 patients (39.6%), 29 lymph nodes (28.4%) were associated with ECLNE.2. The incidence of ECLNE was high in patients with primary lesions of the maxillary and mandibular gingivae.3. As for the distribution of involved lymph nodes, the majority were found in Level 2 (upper deep cervical lymph nodes).4. The averege dimensions of ECLNE were 14.4±6.5mm (shortest diameter) and 20.8±6.7mm (longest diameter).5. There was a relation between ECLNE and the pathological features (mode of invasion and histological malignancy) of primary lesions.6. These results suggest that adjuvant therapy, such as postoperative chemotherapy or radiotherapy (or both), and prophylactic neck dissection with primary tumor exicision might be beneficial in patients with grades 4 C, 4 D, and high grade malignancy.
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