A 45 yr old female complains of progressive lower limb weakness, spasticity, urinary hesitancy. MRI shows intradural enhancing mass lesion. Most likely diagnosis is -

Ans. is 'd' i.e. Meningioma Among the given options, only meningioma shows enhancement on contrast scans."The radiologic image of a dural-based, extraaxial mass with dense, uniform contrast enhancement is essentially diagnostic, although a dural metastasis must also be considered. A meningioma may have a 'dural tail' a streak of dural enhancement flanking the main tumor mass, however the finding may also be present with other dural tumors." - Harrison