Melanotic schwannoma of peripheral nerve root Eurorad Malignant melanotic nerve sheath tumors in the spinal canal of psammomatous and non psammomatous type: Two case reports 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 # Spotty skin pigmentation and multiple blue naevi as cutaneous markers for spinal melanotic schwannoma BMJ Case Reports Psammomatous Melanotic Schwannoma DoveMed