Lymphomas, Hematopoietic Tumors, and Histiocytic Tumors

This chapter provides a detailed exploration of lymphomas, hematopoietic tumors, and histiocytic tumors. It covers a range of tumors and conditions, including primary CNS lymphoma (PCNSL), secondary CNS lymphoma (SCNSL), Erdheim-Chester disease, Rosai-Dorfman disease, juvenile xanthogranuloma, and primary histiocytic sarcoma. 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 these tumors in the field of surgical neuro-oncology.