Can swollen lymph nodes in neck be the symptom, of any autoimmune disease?

Lymph nodes: Swollen lymph nodes are a reaction to inflammation and this can vary from infection to cancer to other problems, autoimmune disease can also cause swollen lymph nodes. Neck nodes tend to swell up frequently, from teeth issues, sinuses, skin inflammation, etc.

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.