Spinal malignant melanotic nerve sheath tumor with atypical magnetic resonance imaging findings: A case report Melanotic schwannoma of peripheral nerve root Eurorad Pitfalls and uncertain prognosis in pathological diagnosis of psammomatous melanotic schwannoma ScienceDirect Frontiers Rare giant retroperitoneal melanotic schwannoma: a case report and literature review 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 # Dumbbell shaped nonpsammomatous malignant melanotic schwannoma of the cervical spinal root ScienceDirect