<unk>  is an active resorption of bone matrix by osteoclasts and can be interpreted as the reverse of ossification. Although osteoclasts are active during the natural formation of healthy bone the term<unk> " specifically refers to a pathological process.<unk>  often occurs in the proximity of a prosthesis that causes either an immunological response or changes in the bone's structural load.<unk>  may also be caused by pathologies like bone tumors, cysts, or chronic inflammation.
Osteolysis
Bone erosion
Acroosteolysis
Osteosclerosis
Dysosteosclerosis
Osteodystrophy
Myelonecrosis
Osteomyelitis