Massive osteolysis of the skull: long-term follow-up observations after cranioplasty. Report of two cases.

Two cases of massive osteolysis involving the cranial vault are presented. Unlike disappearing bones in other regions, it is vital to protect the brain from injury by performing cranioplasty once the bone loss has reached a reasonable extent. This appears to be the first report on surgical management in massive osteolysis of the skull. Long term follow-up results are given. The diagnosis and differentiation from related conditions are discussed.