Yearly follow up for ganglioglioma, status post resection. Postsurgical changes of left temporal ganglioglioma resection with left-sided craniotomy are redemonstrated. The large left cerebral convexity subdural fluid collection with multiple adhesions is unchanged in size from the prior exam measuring up to 28 mm on coronal images, previously 28 mm. Ventricular asymmetry with partial effacement of the left lateral ventricle and mild right ventricular enlargement is stable. An 8 mm rightward midline shift is unchanged. Subtle increased FLAIR signal in the left temporal lobe is again noted. Volume loss in the left anterior temporal lobe is also stable. Mild enhancement along the left anterior medial aspect of the resection cavity is redemonstrated. No new enhancing lesions to suggest recurrence or metastases. Tenting of the left frontal lobe to the overlying dura is not significantly changed. No acute intracranial infarction or hemorrhage. There are prominent cortical veins bilaterally, which are unchanged from the prior examinations and do not show evidence of thrombus on postcontrast imaging.A small mucous retention cyst is again noted in the left maxillary sinus. The visualized paranasal sinuses and mastoid air cells are otherwise clear. No acute intraorbital abnormality is evident.
Stable examination including large chronic left holohemispheric subdural fluid collection with midline shift. No evidence of recurrence or metastasis.