Mondo Description A disease of bone that initially results in the excessive resorption of bone (by osteoclasts) followed by the replacement of normal bone marrow with vascular and fibrous tissue.

Disease Ontology Description A bone formation disease that has_material_basis_in hyperactive osteoclast which results_in abnormal osteoblast bone formation located_in skull, located_in pelvis, located_in vertebral column, located_in set of limbs.