This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Special topics, Subject name: Anatomy
If a fracture, gives the pattern of the striking surface of the weapon it is called 
Select and explain. 
A. Comminuted fracture, B. Ring fracture, C. Pond fracture, D. Signature fracture
D: Signature fracture
Answer: D: Signature fracture 
Explanation: Signature fracture This is a depressed comminuted fracture produced by an object with a small striking surface and will give the pattern of the striking surface of the weapon which caused it like a hammer, butt of a rifle, etc. The weapon which caused the injury can be identified. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 163