I crushed hand two weeks ago. i got it x-rayed, no fracture. now i have a small painful lump at the base of pinky finger palm side. what could it be?

Painful finger lump: Could be a ganglion cyst , they develop when there is repetitive stress and a crush injury could be stress enough. Sometimes they go away on their own or can be aspirated ,rarely need surgical removal. Could also be tendon partial tear ( would not see unless MRI) f/ u w/doc http://www.assh.org/handcare/hand-arm-conditions/ganglion-cyst