system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Abrasion collar is seen in: September 2006
assistant
The correct answer is  Ans. B: Bullet injury Abraded margin (Abrasion collar, Marginal abrasion, Contusion ring, Abrasion ring) occurs due to Forward motion of bullet indenting the skin and abrading the margin of entry wound. Grease or di collar is a black coloured ring lining the entry point of bullet and is sharply outlined