I was a front seat passenger in a car crash 12 days ago. The ER did a chest CT scan with imaging and found a wedge fracture of T7 but no other fractures. I had a lot of seat belt bruising and a stiff left flank that became very sore and bruised after a day or so. At the bottom of my rib cage under the bruise there is a hard knobby lump under the skin, about the size of an egg. Some of the pain has left but the area is still sore and the lump is still there. Is this normal for a bruise this bad, and how long is it okay to go before getting the lump checked out? Would the chest scan have reached that area as well to check for injuries?