Dupuytren’s Contracture is on my research list. I did some quick research after I ran into a video of a child, the description seemed to be Dupuytren's but she actually suffers from macrodactyly. Diseases caused from collagen build-up and accompanying inflammation are very likely to make the list. After looking at macrodactyly it looks like it could be helpful where the exhibited symptoms are neurofibromas or tuberous sclerosis complex but not for other causes.