Headache, new H/A and N/V, aneurysm on prior scan. There is normal gray-white matter differentiation.There is a suprasellar peripherally calcified lesion which has been characterized on prior CT and MRI examination and consistent with a right para-opthalmic aneurysm. It is most probably stable, allowing for the difference in the imaging techniques between the examinations. It measures 13.9 x 9.9 mm in the coronal plane using series 80244, image 25/59 on the current examination and 14.9 x 8.9 mm using series 80228 image 26/64. There is a 5.7 x 6.5 mm isodense lesion paramedian to the right of the foramen of Monroe (please see series 3 image 11/29) and is separate from the suprasellar lesion. This was not apparent on the prior CT examination and may have been obscured on the prior MR examination due to motion artifact as it was not demonstrated then. It is of uncertain significance and one possibility is that it may represent a tiny colloid cyst.There is no evidence of new intracranial hemorrhage, midline shift, hydrocephalus or edema. The ventricles and basal cisterns are normal in size and configuration.The calvarium and skull base appears normal. The visualized paranasal sinuses and mastoid air cells are normally pneumatized and clear.
*There is no intra-axial or extra-axial hemorrhage, edema, midline shift or hydrocephalus.*Stable appearance of the known right para-opthalmic aneurysm. *There is an apparent small isodense lesion paramedian to the right of the foramen of Monroe (please see series 3 image 11/29) which was not apparent on the prior CT or MR examination and may have been obscured by motion artefact. The lesion is separate from the suprasellar lesion and is of uncertain significance. One possibility is that it may represent a tiny colloid cyst.