Can you always see a swollen lymph node in the neck caused by lymphoma?

Many Causes. 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.
Give us background. Your question is not very clear as written now. Lymphomas often cause enlarged nodes but they can be anywhere in the body, so not necessarily limited to the neck. Some lymphomas can even spare the lymph glands altogether. What is your problem?

Related Questions

What to do if I have one swollen lymph node in my neck. I believe it is cpuld be the cause for this one lymph node doing this?

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. Read more...

I have recurring prostatitis can it cause swollen lymph node in neck?

NO not at all. Swollen nodes in neck would have no connection with your prostatitisd. That is not possible as there is no connection between the prostate gland and the lymph nodes in the neck. Go get a doctor to check your neck and seek his/her advice. Read more...

I have a swollen lymph node in my neck right below my ear is it cause for concern?

Get it checked. several possibilities....see an ENT ....could be the result of a long standing infection, could be one of your posterior molar teeth has abscessed. Read more...