A Rare Case of Aggressive Melanotic Schwannoma Occurred in Spinal Nerve of a 59 Year Old Male Intracranial Metastases: Spectrum of Mr Imaging Findings Eun Kyoung Lee, Eun Ja Lee, Mi Sung Kim, Hee Jin Park, No Hyuck Park, Sung Il Park, Yong Seok Lee, 2012 Cutaneous Melanoma: An Overview of Physiological and Therapeutic Aspects and Biotechnological Use of Serine Protease Inhibitors Pathology Outlines Malignant melanotic nerve sheath tumor