I’m 71 F and awaiting my first oncology appointment. I’ve had CT & PET scans of my enlarged lymph node in my neck. Finally had surgery to remove it and do a second biopsy on it. Positive for metastatic p16+ squamous cell carcinoma, strong pancytokeratin and p40 positivity. All tests have shown a primary lesion is not identified. Only the lymph node lit up in the PET. So far my ENT has said it has to be throat, tonsils, or back of tongue. He also mentioned, as someone else said, there is a possibility that my body has gotten rid of it or it is just cells so small they are not showing up.