This calcification of tissue is a lot like the body building a wall around a sometimes traumatic problem in the body.
When tissues in the body start to go bad, this is like a last line of defense against possible grave danger to the body.
This mechanism of dystrophic calcification also happens in the case of medical implants as well, so doctors have to keep this in mind when implanting various equipment.
A rise in the level of calcium can cause metastatic calcification. This is like dystrophic calcification, but this happens to regular healthy tissue without cause.