Also called "cortical bone," compact bone is the dense, hard outer layer. Cancellous: Also called "trabecular "or "spongy bone," cancellous is the inner layer that is less dense, lattice-like ...

It has been described as a tile-like or 'mosaic' pattern observed in both the cortical ... cancellous regions of the affected bones, which accounts for the softening, porosity and subperiosteal ...