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 Malignant melanotic nerve sheath tumors in the spinal canal of psammomatous and non psammomatous type: Two case reports Psammomatous Melanotic Schwannoma DoveMed Spinal schwannoma Radiology Reference Article Radiopaedia.org Surgical management of malignant melanotic nerve sheath tumors: an institutional experience and systematic review of the literat