This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skeletal infections, Subject name: Anatomy
Osteogenic sarcoma arises from 
Select and explain. 
A. Epiphyses, B. Metaphysis, C. Growth plate, D. Epiphyseal coex
B: Metaphysis
Answer: B: Metaphysis 
Explanation: The tumor most commonly begins in the Metaphysis The most common site of involvement is Metaphysis of long bone around knee ***lower end of femur ***upper end of tibia Refer Maheshwari 4th/e p. 232