6) A 45-years old female complains of progressive lower limb | Surgery videos & books

6) A 45-years old female complains of progressive lower limb weakness, spasticity, urinary hesitancy. MRI shows intradural enhancing mass lesion. Most likely diagnosis is: a. Dermoid cyst b. Intradural lipoma c. Neuroepithelial cyst d. Meningioma