Table 8.
Size of lymph node and metastasis of squamous cell carcinoma of the base of the tongue
| Size of cervical node | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1–3 mm | p value a | 4–6 mm | p value a | 7–9 mm | p value a | 10–30 mm | p value a | >30 mm | p value a | ||||||
| + | − | + | − | + | − | + | − | + | − | ||||||
| 7 | 61 | 11 | 74 | 12 | 74 | 26 | 54 | 0 | 0 | ||||||
| Clinical staging | 0.280 | 0.976 | 0.602 | 0.999 | NA | ||||||||||
| Stage I | 1 | 11 | 2 | 11 | 3 | 9 | 4 | 8 | 0 | 0 | |||||
| Stage II | 1 | 23 | 3 | 25 | 4 | 28 | 9 | 19 | 0 | 0 | |||||
| Stage III | 2 | 18 | 3 | 19 | 2 | 21 | 7 | 14 | 0 | 0 | |||||
| Stage IV | 3 | 9 | 3 | 19 | 3 | 16 | 6 | 13 | 0 | 0 | |||||
| Tumor size | 0.441 | 0.413 | 0.756 | 0.161 | NA | ||||||||||
| ≤ 1.0 cm | 0 | 8 | 1 | 5 | 1 | 7 | 5 | 6 | |||||||
| 1.1–2.0 cm | 1 | 14 | 2 | 5 | 2 | 5 | 2 | 6 | 0 | 0 | |||||
| 2.1–3.0 cm | 1 | 17 | 2 | 27 | 2 | 21 | 9 | 12 | 0 | 0 | |||||
| 3.1–4.0 cm | 3 | 15 | 3 | 27 | 4 | 21 | 8 | 13 | 0 | 0 | |||||
| > 4.0 cm | 2 | 7 | 3 | 10 | 3 | 20 | 2 | 17 | 0 | 0 | |||||
| Pathologic differentiation | 0.546 | 0.948 | 0.765 | 0.587 | NA | ||||||||||
| Well differentiated | 4 | 21 | 5 | 30 | 4 | 34 | 6 | 18 | 0 | 0 | |||||
| Moderately differentiated | 2 | 17 | 3 | 22 | 3 | 20 | 9 | 18 | 0 | 0 | |||||
| Poorly differentiated | 1 | 14 | 2 | 13 | 3 | 12 | 8 | 10 | 0 | 0 | |||||
| Undifferentiated | 0 | 9 | 1 | 9 | 2 | 8 | 3 | 8 | 0 | 0 | |||||
aChi-square test or Fisher’ s exact test.
+ metastasis of SCC to cervical node, − no metastasis of SCC to cervical node.