I Injured My Foot Last Saturday When I Dropped A

I injured my foot last Saturday when I dropped a motorcycle on it. The handlebar landed hard on the top of my foot. It was really painful at the time, and there was massive amounts of swelling for the first few days. It still hurts, but not as much as the first few days. What makes me curious is why I have very minimal, almost non-existent bruising. My foot feels like it should be completely black and blue, but there is nothing besides miner swelling. What could I have done to it?