35-year-old male rule out aneurysm. History of right frontal tumor resection. Rule out subarachnoid hemorrhage. Non-infused CT of brain.Examination demonstrates a large surgical cavity in the right frontal lobe representing site of previously resected tumor.Extensive vasogenic edema in the right hemisphere and to a lesser degree within the left cerebral hemisphere is noted. This is concerning for recurrence of tumor and a follow up exam with an MRI is recommended.No evidence of subarachnoid hemorrhage is detected. Slight high density within the sylvian fissure and interhemispheric fissure is secondary to low density of the adjacent brain parenchyma and not subarachnoid hemorrhage. MRV of intracranial sinuses.This examination is within normal limits and demonstrates normal augment renal venous sinuses.CTA of intracranial spiculation.CTA of the carotid system demonstrates patent bilateral internal carotid arteries across the skull base. There is good visualization of bilateral anterior and middle cerebral arteries with no evidence of pathology in particular no evidence of aneurysm.CTA of vertebral basilar system demonstrates patent bilateral intracranial components of the vertebral arteries with no pathology. Basilar artery and all of its branches are normal and demonstrate no pathology in particular no stenosis or aneurysm.
1.Increased edema surrounding the surgical cavity in the right hemisphere is highly concerning for recurrence of tumor and a follow up MRI with infusion is recommended.2.No evidence of subarachnoid hemorrhage on CT.3.Unremarkable MRV of intracranial venous sinuses.4.Unremarkable CTA of intracranial vasculature.