Mesenchymal Nonmeningothelial Tumors

This chapter focuses on mesenchymal, non-meningothelial tumors, offering a detailed understanding of this diverse group of tumors. The chapter covers an array of tumors, including solitary fibrous tumor/hemangiopericytoma, hemangioblastoma, hemangioma, angiosarcoma, Kaposi sarcoma, and Ewing sarcoma/PNET. It offers insights into their definition, epidemiology, pathology, molecular genetics, etiology, and clinical presentation. It further addresses staging and classification, diagnostic procedures, and various treatment options and considerations. The critical aspects of recurrence, follow-up, and prognosis are also discussed. This chapter serves to facilitate a well-structured approach to understanding and managing mesenchymal, non-meningothelial tumors in the field of surgical neuro-oncology.