Pigmented Melanotic Schwannoma of the Neck: Report of 2 Cases and Review of the Literature Michael C. Topf, Quang H. Pham, Jill N. D'Souza, Mark Chaskes, Madalina Tuluc, David M. Cognetti, Surgical Neurology International Pitfalls and uncertain prognosis in pathological diagnosis of psammomatous melanotic schwannoma ScienceDirect A Rare Case of Aggressive Melanotic Schwannoma Occurred in Spinal Nerve of a 59 Year Old Male Psammomatous melanotic schwannoma a rare neck lump The Annals of The Royal College of Surgeons of England Frontiers Sporadic spinal psammomatous malignant melanotic nerve sheath tumor: A case report and literature review