2 June 2020: Biweekly Image Quiz #32

Author: Jayalakshmi Balakrishna, M.D.

A 20 year old man presents with an enlarged painless cervical lymph node he has had for 6 months. An excisional biopsy is shown in the image. The neoplastic cells are positive for CD45 and CD20 and are negative for CD15 and CD30. Which of the following is true about this entity?

Select an answer:

A. Background is rich in cytotoxic T cells

B. Background lacks small B cells

C. Neoplastic cells are OCT2 positive

D. Neoplastic cells are PAX5 negative

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