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: Orthopaedics
Not true about aneurysmal bone cyst 
Select and explain. 
A. Expansile, Blood filled cyst, B. Most common in upper end of Tibia, C. Diagnosis is by FNAC, D. Is a pseudocyst
C: Diagnosis is by FNAC
Answer: C: Diagnosis is by FNAC 
Explanation: None