Female, 81 years old, history of atypical meningioma and left leg dysfunction. Assess for etiology of leg dysfunction. Evidence of a right parietal craniotomy is seen. No definite residual or recurrent masslike lesion is seen subjacent to the craniotomy. Only mild nonspecific extra-axial thickening is noted.An extra-axial homogeneously enhancing mass is evident along the planum sphenoidale measuring 12 x 12 x 6 mm. This lesion induces minimal local mass effect but there is no evidence of significant parenchymal edema.No additional enhancing or masslike lesions are seen intracranially. In particular, the lower extremity motor areas of the precentral gyri are morphologically normal and free of any impinging or compressing lesions.Scattered small areas of T2 hyperintensity are seen within the cerebral white matter, somewhat more so on the right than on the left. No evidence of parenchymal edema or significant generalized mass effect is seen. No abnormal extra-axial fluid collections or acute intracranial hemorrhage is identified. A few scattered small foci of susceptibility are noted in the brain which likely reflect chronic microhemorrhage. The ventricular system is within normal limits for size and morphology.
1.Findings compatible with prior right parietal craniotomy. No evidence of any residual or recurrent masslike lesion is seen subjacent to the craniotomy. Only mild extra-axial thickening and enhancement is seen at this location which likely represents granulation or chronic dural thickening.2.A small presumed meningioma is evident along the planum sphenoidale causing no significant mass effect or parenchymal edema.3.No additional findings are seen to account for the patient's left leg dysfunction. In particular, the lower extremity motor areas are free of significant signal abnormality, and there are no adjacent compressing or impinging lesions.