A series of staging investigations were undertaken, including positron emission tomography (PET) scan, which revealed high risk of metastasis to the cervical lymph nodes.
A series of staging investigations were undertaken, including positron emission tomography (PET) scan, which revealed high risk of metastasis to the cervical lymph nodes.
一系列的检查（包括正子造影）发现有高机率颈部淋巴结转移。