Urothelial cancer. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. There appears to be a 2 mm wide outpouching of the right internal carotid artery opthalmic segment. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable. There is a midline cystic lesion in the posterior nasopharynx that measures up to 12 mm, which may represent a Thornwaldt or retention cyst.
1. No evidence of intracranial metastases.2. An 2 mm wide outpouching of the right internal carotid artery opthalmic segment may represent an aneurysm versus prominent infundibulum or artifact. Further evaluation via dedicated angiographic imaging may be useful for further characterization.