I have a swollen lymph node on the back of neck and swollen tonsil with crater very painful. could it be tonsil cancer?

Tonsil cancer: Interestingly, tonsil cancers are usually not painful, but they certainly could be. They can also present as a large ulcer or a large enlarging mass. When they spread, they usually spread to the first level lymph nodes in the neck, below the jaw. A lymph node in the back of the neck is not likely to be caused by a tonsil cancer. It is best to have these problems evaluated by doctor to be sure.

NO , but: Tonsil can develop cancer and spread to neck lymph nodes in older population not at 28 , . See your doctor for for examination , rx of antibiotics if needed.

Monitoring Centers: Lymphatic system absorbs/carries things too big to go into the arteries/veins like bacteria eaten by white cells and digested food. Lymph nodes "taste" the lymph for anything bad like bacteria/viruses/cancers, etc. When it detects a problem, it alerts the immune system and your body reacts. They enlarge in response to the inflammation they create when they react. They shrink when all is well.