Ossification of the Human Tentorium Cerebelli

摘要

Anomalous ossification of the intracranial dural partitions is uncommon and when present, usually restricted to the falx cerebri. We report a patient with Chiari II malformation who was found to have ossification of the tentorium cerebelli. Ossification of the tentorium is common in some animals but extremely rare in humans. We believe that this is the first report of such a finding in a patient with Chiari II malformation. The literature germane to tentorial ossification is reviewed.