Pathology Which of the following is not true regarding CLL/SLL? A The tumour cells are positive for CD5 and CD20 B Transformation to Richter syndrome is commonly seen C ZAP-70 expression is a poor prognostic marker D Proliferation centers in lymph nodes are pathognomonic 💡 Explanation Which of the following is not true regarding CLL/SLL? ✓ Correct Answer: B. Transformation to Richter syndrome is commonly seen