Benign breast lumps, icnluding cysts, are quite common in young women, although new breast lumps in women of ANY age should be evaluated to rule-out a possible breast cancer.
Lymphoma typically causes painless (and progressive) enlargement of one or more lymph nodes. On the other hand, tender, painful lymph nodes are almost always caused by infection or inflammation.
Unfortunately, it is not possible to provide a specific diagnosis over the Internet to patients with concerns regarding enlarged lymph nodes. Therefore, my advice is for you to see your doctor for an examination.
Sincerely/ Robert A. Wascher, MD, FACS
www.doctorwascher.com
www.oncoguard.com