This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Lethal midline granuloma arises from 
Select and explain. 
A. T-cells, B. B-cells, C. NK cells, D. Macrophage
C: NK cells
Answer: C: NK cells 
Explanation: Ans. is 'c' i.e., NK cells Lethal midline granuloma or polymorphic reticulosis is a lymphoma of natural killer (NK) cells infected with EBV.