Learning Goal: I’m working on a biology writing question and need an explanation

Learning Goal: I’m working on a biology writing question and need an explanation and answer to help me learn.Case A 58 year old male presented to the ED with fatigue, night sweats, weight loss of 25 pounds over the last 3 months, generalized lymphadenopathy and splenomegaly. He was diagnosed with mantle cell lymphoma after an extensive work up. this is the case assigned to us and according to this case, I have to answer the additional test for the diagnosis. Question. What additional tests could be performed to confirm the diagnosis?( one page answer with the tests that could be performed to support the diagnosis.
Requirements: 1 Page