Conversation: The conversation between human and AI assistant.
[|Human|] I was a tobacoo addict for the last 15 years. Recently I have developed oral cancer. I was operated and the biobsy showed that the tumor cells were removed marginally. I also took radiotherapy(electron radiation) for further safety. But soon  adain a swelling appeared at the neck which was re operated.  but still again  more swellings are appearing on the left shoulder. i have gone for chemotherapy but its not helping. plz advice me.
[|AI|]  Thanks for your question on Chat Doctor. I can understand your concern. Oral cancer can spread to cervical lymph nodes and bones. So possibility of malignant lymph node enlargement in neck is more. This can give rise to swelling in neck. Bone metastases in shoulder can also cause swelling. So better to get done PET (positron emission tomography) scan to rule out metastases in neck nodes and shoulder. Hope I have solved your query. Wish you good health. Thanks.