Recurring osteoma within a calcium phosphate bone cement cranioplasty: case report.

Hayden MG, Guzman R, Dulai MS, Mobley BC, Edwards MS
Neurosurgery. 2009 64 (4): E775-6; discussion E776

PMID: 19349808 · DOI:10.1227/01.NEU.0000339126.47870.43

OBJECTIVE - We present a unique case of a recurrent osteoma within a cranioplasty performed with calcium phosphate bone cement.

CLINICAL PRESENTATION - The patient is a 7-year-old boy who had initially undergone a craniotomy for resection of a frontal cranial tumor followed by a cranioplasty with artificial bone matrix. On routine follow-up evaluation 2 years later, the patient had a mass expanding from the cranioplasty.

INTERVENTION - At the time of reoperation, the patient was found to have a histopathologically confirmed recurrent osteoma within the artificial bone matrix. The patient later underwent repair of the frontal cranial defect using a patient-specific implant.

CONCLUSION - We discuss this unusual case, treatment, and possible causes. We believe that a safety margin and curettage of the resection border as well as resection of the overlying periosteum might prevent recurrence.

MeSH Terms (11)

Bone Cements Bone Neoplasms Calcium Phosphates Child Humans Male Methylmethacrylate Neoplasm Recurrence, Local Osteoma Radiography Tomography Scanners, X-Ray Computed

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