This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hematology: White Blood Cells (Miscellaneous questions), Subject name: Pathology
Marker for granulocytic sarcoma: 
Select and explain. 
A. CD33, B. CD38, C. CD117, D. CD137
C: CD117
Answer: C: CD117 
Explanation: Marker for granulocytic sarcoma is CD117