Swollen lymph nodes · patient is otherwise "healthy" · Dx?

A 52-year-old woman presented to our family clinic for a well woman exam. The only complaints she had were fatigue, which she attributed to a work day that began at 4 am, and hot flashes. She denied fever, weight loss, abdominal pain, medication use, or recent foreign travel. She had a history of hyperlipidemia and surgical removal of a cutaneous melanoma at age 12.