Prevalence and Appearance of the Posterior Wall Defects of the Temporal Bone Caused by Presumed Arachnoid Granulations and Their Clinical Significance: CT Findings

摘要

Arachnoid granulations (AGs) of the posterior wall of the temporal bone are a rare cause of spontaneous CSF leakage. The purpose of this study was to investigate the prevalence and appearance of presumed AGs, evidenced by the posterior wall defects of the temporal bone with lobulated or scalloped margins on CT scans.