Female, 18 years old, status post left parietal cranioplasty for treatment of large eroding arachnoid granulations. Postoperative findings are seen at the left parietal convexity compatible with cranioplasty. The previously demonstrated CSF-filled presumed arachnoid granulations are no longer evident. No fluid collections are seen intracranially or extracranially. Thinning of the right parietal convexity is unchanged.Brain parenchymal morphology and signal characteristics are within normal limits. No evidence of edema or mass effect is seen. No intracranial hemorrhage or any abnormal extra-axial fluid collections are detected. Ventricles are normal in size and morphology.
Findings are demonstrated compatible with cranioplasty at the left parietal convexity. The previously seen presumed arachnoid granulations are no longer evident.