I developed this tool primarily for general ortho surgeons and residents. I find bone tumor diagnosis is very difficult. This free website really helps.
www.bayonetbone.com The desktop version is great. The mobile version is a little clunky on the phone but does the trick. It will be great on the tumor rotation. It got a 97% on the MSK OITE section. There is no catch, or fee. It was just something that I thought was cool. I had the great pleasure of working with an amazing medical student from Jefferson to finally get it done.
www.bayonetbone.com 
