Primary spinal melanoma of extramedullary origin: a report of three cases and systematic review of the literature Spinal Cord Series and Cases Two spinal lesions: schwannoma and meningioma Radiology Cases At MRI, spinal melanotic schwannoma is usually located along a spinal nerve root, The presence of paramagnetic free radicals in melanin creates characteristic T1 hyperintensity and T2 hypointensity, any ddx? #radiology #radiologist # Surgical management of malignant melanotic nerve sheath tumors: an institutional experience and systematic review of the literat Intradural Schwannoma Radiology Key Frontiers Rare giant retroperitoneal melanotic schwannoma: a case report and literature review