This poor man was unloading heavy objects from a truck and unfortunately, some part of the load fell on him. On examination, there is marked congestion of face and upper shoulder and pallor of the rest of the chest with a clear line of demarcation. What Is the significance of these findings?

*This image based case is from Docplexus editorial team for educative purpose only. Source: Koronfel`s Forensic Medicine The answers are posted in the comments section click here.