Paraganglioma avg 45-50, range 13-70 Spinal canal, Intradural Extramedullary Spinal nerve, Cauda equina Resection, Embolization Well defined, Homogenous, May be mildly heterogenous, May remodel bone, Vascular, Draining veins 1 Myxopapillary Ependymoma (muck more common), Schwannoma, Meningioma, Metastasis, Hemangioma of filum terminale Iso, Hyper Hyper, Inhomogenous, Flow Voids Bone remodelling Intense OR Yes OR (T2) OR Resection usually curative 1-5cm