Benign neoplasm of brain and other parts of nervous system
- Abnormal growth of cells in the nervous system without evidence of malignant characteristics. Unlike other organ systems, tumors in the central nervous system can have benign histological characteristics but still have life threatening effects due to their location within the neuraxis (e.g., brainstem gliomas).
Benign neoplasm of brain
- Primary neoplasms of the brain which are noninvasive and tend to grow slowly. They are generally classified by location and histologic type. In children, astrocytomas of the cerebellum represent relatively common benign brain neoplasms. In adult meningiomas, neurilemomas and pituitary tumors comprise the majority of benign tumors.
Benign neoplasm of cranial nerves
Benign neoplasm of cerebral meninges
- relatively common neoplasm of the central nervous system that arises from arachnoidal cells; the majority are well differentiated vascular tumors which grow slowly and have a low potential to be invasive, although malignant subtypes occur; they have a predilection to arise from the parasagittal region, cerebral convexity, sphenoidal ridge, olfactory groove, and spinal canal.
- (meh-nin-jee-O-ma) A type of tumor that occurs in the meninges, the membranes that cover and protect the brain and spinal cord. Meningiomas usually grow slowly.
- A generally slow growing tumor attached to the dura mater. It is composed of neoplastic meningothelial (arachnoidal) cells. It typically occurs in adults, often women and it has a wide range of histopathological appearances. Of the various subtypes, meningothelial, fibrous and transitional meningiomas are the most common. Most meningiomas are WHO grade I tumors, and some are WHO grade II or III tumors. Most subtypes share a common clinical behavior, although some subtypes are more likely to recur and follow a more aggressive clinical course. (Adapted from WHO.)
- A benign tumor occurring in the meninges, which surround the brain and spinal cord. The most common are meningiomas. - 2004
Benign neoplasm of spinal cord
- A benign growth of the cells that comprise the spinal cord.
Benign neoplasm of spinal meninges
Benign neoplasm of other specified sites of nervous system
Benign neoplasm of nervous system part unspecified
- Abnormal growth of cells in the nervous system without evidence of malignant characteristics. Unlike other organ systems, tumors in the central nervous system can have benign histological characteristics but still have life threatening effects due to their location within the neuraxis (e.g., brainstem gliomas).
