Malignant melanotic nerve sheath tumors in the spinal canal of psammomatous and non psammomatous type: Two case reports Melanotic schwannoma mimicking metastatic pigmented melanoma: a pitfall in cytological diagnosis Melanoma Metastases versus Neurocysticercosis; the Importance of Correct Interpretation of MR Findings Clinical Case Reports Journal (ISSN 2767 0007) Intracranial Melanotic Schwannomas: Rare and Distinctive Tumors to Know Due to their Risk of Recurrence and Metastases Journal of the Belgian Society of Radiology