Reason: h/o right frontal meningioma s/p cyberknife and left intraventricular tumor History: surveillance Images are somewhat limited by patient motion, especially postcontrast imaging. There is a stable slightly heterogeneously enhancing mass in the expanded left ventricular trigone, which measures 3.0 x 3.2 cm in greatest axial dimensions, essentially unchanged from previous measurement of 2.9 x 3.2 cm when allowing for differences in technique. Is is also similar to remote measurements from May 2013.There has been no significant increase in size of a smaller right frontal convexity dural based extra-axial mass, which measures 15 x 11 mm compared to previous 14 x 11 mm in April 2015. However compared to the more remote May 2013 exam, there has been interval increased in size from prior measurement of 12 x 8 mm. There is an additional more caudally located tiny enhancing extra-axial dural based nodule along the inferior frontal lobe measuring 6 x 6 mm on 12/99, slightly increased in size from 5 x 5 mm in April 2015, and 4 x 4 mm in May 2013.The ventricles and sulci are otherwise within normal limits. The cisterns remain patent. There is no midline shift. A few stable small scattered foci of T2/FLAIR hyperintensity within the white matter remain nonspecific. There are no new areas of abnormal signal or pathological enhancement. There is no diffusion abnormality. There is slight focal prominence of extra-axial space along the left lateral posterior fossa with questioned mild flattening of the adjacent cerebellar parenchyma, which could relate to a small arachnoid cyst.Normal flow-voids are demonstrated in the major intracranial vascular structures. The midline structures and craniocervical junction are within normal limits. There is a stable enhancing focus along the right parietal bone which is nonspecific.
1.Stable presumed left intraventricular meningioma.2.Stable smaller presumed right frontal convexity meningioma when compared to the most recent prior exam, although slightly increased in size since May 2013.3.Progressive slight increased size of a subcentimeter right anterior cranial fossa floor presumed meningioma when compared back to 2013.