What are common primary brain tumor

By | April 14, 2012

What are common primary brain tumor, 1. Gliomas glioma tissue from the nervous system support, is ectodermal tumor. Tissue divided by the principles of glioma astrocytoma, as astrocytoma, into myeloid cell tumor, small sticks of glial cell tumor, ependymoma, pineal tumors, nerve skin tumors. Those with high malignant tumor necrosis and hemorrhage often, rich in blood vessels, vascular endothelial cells in the outer layer and significantly accretive.
2. Meningiomas, also known as arachnoid endothelioma, was the primary tumor on the intracranial meninges, accounting for 15.7% of intracranial tumors, but brain tumors in children account for only 3.1% – 6.9%. The clinical features vary by tumor site and. Convexity meningiomas occur in the brain and sagittal sinus next to the account for 66.5%, 14% of posterior fossa, sphenoid 87%, 4.4% in the fossa, olfactory groove 2.3%, 2.1% in the saddle area.
3. Pituitary tumor (also known as pituitary adenoma) is the primary pituitary tumor on the pituitary gland. By the anterior pituitary and the posterior lobe of the composition of the early embryonic anterior pituitary in the top of the original roof of the mouth occurs after the development of epithelial protrusions formed; ventricular posterior pituitary from the original bottom of the third ventricle occurring processes, development from the funnel tip. Compression due to tumor extension can still be adjacent tissue and cause other symptoms and signs. The majority of pituitary tumors grow slowly benign adenoma is extremely rare. According to clinical and pathological nature of the staining of chromophobe pituitary adenomas were divided into sex, eosinophils, basophils, and mixed type 4.
What are 4 common primary brain tumor. Craniopharyngioma of the disease also known as the enamel or into the sleeve Leydig cell tumor Leydig cell tumor, suprasellar epidermoid cyst. The top of the original oral processes in the spinal cord called the Rathke bags up front, after the formation of the Ministry of the pituitary gland, that is before the leaves. Rathke bags under the connection part with the development of oral tapering process, known as cranial or pituitary craniopharyngioma tube, and then gradually disappear. However, after the formation of the pituitary craniopharyngioma may have some residual epithelial cells retained control, in particular, often present in the pituitary infundibulum by a tumor called craniopharyngioma occurred here. Tumors located in the saddle, the saddle, including the growth chamber into the third ventricle obstruction between the holes, but also broke into the front of the lateral ventricles. The tumor often cystic or solid plus cysts, generally clear boundaries with the surrounding tissue, but often causes the pituitary gland and hypothalamus compression damage caused by the corresponding symptoms, the disease more common in children.

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