 This is a limited exam performed for the purposes of surgical localization. There is an unchanged left anterior middle cranial fossa arachnoid cyst that results in mild bowing of the posterior lateral wall of the left orbit and mild left proptosis. There is a tiny developmental venous anomaly in the brainstem. There is unchanged T1 hyperintense retention cyst within the left sphenoid sinus. There is no evidence of abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The skull and scalp appear unremarkable.
1.No evidence of intracranial metastases. If there is concern for recurrent melanoma elsewhere, a PET-CT is suggested.2.Unchanged left middle cranial fossa arachnoid cyst with mass effect upon the left orbit and mild left proptosis.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.