Conversation: The conversation between human and AI assistant.
[|Human|] Hi i have a lump on my neck its the size of a marble maybe a little bigger its rock hard but it moves  i little bit left and right  i have had a few migranes and i am worried that it might be cancer my dad had a tuma twice and his dad died from cancer so have you got any advice?
[|AI|]  Hi, Thanks for writing in. A lump the size of a marble behind the neck is most likely a cyst or a lymph node. It will be nice if you might consult a surgeon and have a confirmed diagnosis made. A cancer is less likely if it has appeared suddenly in a few days or present for months without any change in size. The surgeon might conclude a confirmed diagnosis after clinical examination or ask for a FNAC test to know if it is a particular type of swelling. Since the swelling is moving over the skin therefore it is not fixed to the deeper layers of tissue and less likely malignant. Please do not worry.