Can a lymph node fna with flow cytometry rule out lymphoma?

Not 100% Many enlarged lymph nodes are not cancerous are instead benign and a result of another disease process. An fna is a good starting test for evaluating lymph nodes that appear to not be associated with other things that go along with lymphoma, but if suspicion is high, a fine needle aspiration (fna) is not enough and an excisional biopsy is preferred.