A 53yrs old woman is diagnosed with malignant lymphoma based of a biopsy of a painless, moderately mobile nodule, located on the left, supraclavicularly. She complains of weakness, loss of weight, anorexia, nausea, discomfort, dizziness and unclear pain in the epigastrium. No palpable peripheral lymph nodes. From the laboratory results: iron deficiency anemia, hypo-proteinemia. The biopsy was sent for revision. What conclusion do you expect from the consulting pathologist and how could it be proved?
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