Hello, welcome to HCM,
Firstly, from your description it sounds like a lymph
node. But it should be confirmed by physical examination. for this consult with a general physician.
If you have any history of sore throat
, dental infection, then it is quite common. But if you donot have these conditions, then Fine Needle Aspiration Cytology should be done from That particular lesion. Surgical biopsy
should be done to rule out other possibilities.