Stage IV CRC. Evaluate for syncope. Enhanced CT of brain: Examination demonstrates no evidence of hemorrhage, edema, mass-effect, midline shift or hydrocephalus. There is no evidence of any abnormal enhancement of brain parenchymal or the leptomeninges. The cortical sulci, ventricular system and all CSF cisterns remain within normal for patient's stated age. The gray -- white matter differentiation is well-preserved.Slight prominence of the left cavernous sinus is noted. This finding could be secondary to tortuosity of internal carotid artery within the cavernous sinus considering the patient's age. If patient has symptoms related to be peroneal nerves within the cavernous sinus follow-up exam with a dedicated MRI is recommended. Possibility of a mass or atherosclerotic aneurysm is also another differential diagnosis.
1.Unremarkable CT examination of brain with enhancement.2.Left cavernous sinus demonstrates expansion on its posterior aspect. This finding could be secondary to tortuosity and atherosclerotic ectasia of internal carotid artery considering patient's age. To exclude possibility of underlying mass or an aneurysm a dedicated MRI is recommended.