| Name | Sa3 | HSC-2 | HSC-3 | HSC-4 |
| Primary lesion | maxillary gingiva | mouth, bottom | tongue | tongue |
| Site of collection | submandibular lymph node metastases | metastasis in the middle and deep cervical lymph nodes | metastasis in the middle and deep cervical lymph nodes | |
| Degree of differentiation | high | high | low | high |