What is the term for a malignant neoplasm of nervous tissue?

The term for a malignant neoplasm of nervous tissue is "glioma." Gliomas are tumors that arise from glial cells, which support and protect neurons in the nervous system. This type of tumor can occur in various locations within the brain or spinal cord and encompasses a range of tumor grades, from low-grade (less aggressive) to high-grade (more aggressive) forms. The classification indicates that gliomas specifically target nervous tissue, distinguishing them from other types of malignancies that affect different tissues or organs.

Other choices refer to tumors of different tissue types. Carcinomas are malignant tumors that originate from epithelial cells, commonly found in skin, glands, and the lining of organs. Sarcomas arise from connective tissues, such as bone, muscle, and fat. Lymphomas are cancers that originate in the lymphatic system, which is part of the immune system. Understanding these distinctions is crucial in medical training and practice, as the management and treatment of each type of tumor can vary significantly.