Female, 71 years old, with grade 1 meningioma status post subtotal resection and radiotherapy (in 2004). Evaluate extent of disease. A round craniotomy defect is redemonstrated centered at midline and encompassing the bilateral parietal bones. Nonspecific dural/epidural thickening and enhancement overlying the operative region is again seen, and a small fluid collection deep to the craniotomy has decreased in size from the prior exam.A nodule of solidly enhancing tumor-like tissue along the left aspect of the parietal interhemispheric falx measures 18 x 11 x 13 mm, previously 12 x 9 x 9 mm. This nodule appears to project into what remains of the adjacent, partially resected superior sagittal sinus.Confluent T2 hyperintensity involving the white matter of both parietal lobes and the left greater than right occipital lobe is unchanged. Additional scattered foci of white matter T2 hyperintensity elsewhere in the cerebral hemispheres and the pons are likewise unchanged. No new enhancing lesions are seen. The ventricles are stable in size and morphology. Incidental note is made of a partially empty sella.
Mild interval increase in the size of a small residual tumor nodule along the left surface of the parietal interhemispheric falx.