Meningiomas occur more frequently in elderly patients and may be a mental change. The differential

As already described earlier, meningioma is 15% of primary brain tumors. Most of the benign and the other can be in complete operation. These tumors occur in adults and especially in the middle of the decade. Largely a solitary lesion, but multiple meningiomas systane can occur with or without neurofibromatosis. Histology berdasrkan there are four main types of meningioma: meningothelial, transitional, fibroblastic, and angioblastic. Angioblastik a little pasling and more aggressive systane than other types. This further divided into two varieties, namely hemangioblastic, cerebellar haemangioblastoma similar, and that both hemangiopericytoma. This type hemangiopericytoma really similar to other tissue and is characterized by small, terbungksu cells with many fine blood vessels. Mitosis is common. systane These tumors are more aggressive with a tendency towards recurrence and metastatic spread.
Clinical symptoms of meningiomas depending on the location of the tumor. Paing place often for the growth of such convexity meningioma, sphenoid wing, cerebellopontine angle, parasagittal region, olfactory curves, and tuberculum sellae. The location is not often cerebellar systane convexity, the foramen magnum, and clivus.
Convexity meningiomas may grow larger before it becomes symptomatic / symptomatic. Common complaint is headache. Depending on the area affected, the patient systane may be seizures or focal signs such as weakness or sensory systane loss. Sphenoid wing meningiomas are generally divided into middle and medial third (clinoid). Spenoid lateral and middle third wing meningiomas have similarities in the way convexity meningiomas. Clinoidal meningiomas arising from the medial systane spenoid wing and involving the carotid and cerebral arteries mddle such as the optic nerve and optic tract. In large tumors, frontal and temporal lobes may be depressed. systane Symptoms on optic nerve which is usually used as a reference, but seizures and hemiparesis or perhaps simultaneously. Parasagittal tumors, as the name implies, systane it affects the sagittal systane sinus as the falx and convexity nearby. Tumors arise from the mid position of the sagittal sinus causing seizures and lower extremity weakness or sensory loss due to compression of the base of the sensorimotor systane cortex. Meningioma in the anterior of thirds is more difficult to detect clinically despite greater when first discovered. Signs and symptoms include changes in behavior and possible dementia. Headaches appear systane on both and on meningiomas in general. The tuberculum sellae meningioma indicated by loss of vision. Usually occurs unilaterally. With the progress of symptoms, namely systane loss of sharpness and bilateral panadng field disturbance, which diakitkan with optic nerve atrophy. Meningioma of the olfactory pathways develop in the midline anterior fossa. This area is relatively calm and the tumor will often reach a large size before it is detected. Headache is a common symptom systane and may be a mental change. Meningiomas of the cerebellopontine angle showed the same symptoms with acoustic tumors systane (vide infra). Common symptoms such as hearing systane loss, vertigo, and tinnitus. Other symptoms at this location is directly influenced by the size of the tumor that affects the basal cranial nerves other. As tumors lainny ayng appear in the posterior fossa, these tumors may lead to hydrocephalus which causes an increase in ICT. Preoperative CT scan will reveal hydrocephalus in addition to the meningioma.
The lesion appeared slightly more dense and homogeneous after spreading kontas injected. Such changes easily systane in the evaluation of bone on CT scans. Half of patients with meningiomas are cerebral edema bordering the tumor. At this time may be marked edema and can complicate anesthesia and surgery. Angioraphy often performed in patients with suspected meningioma. Outside the lines supplying the tumor, which is often of the external carotid. This information is useful when extirpation.
Meningiomas occur more frequently in elderly patients and may be a mental change. The differential diagnosis is Alzheimer's disease and Parkinson's syndrome. Thus, patients should be treated with levodopa. Orthostatic hypotension and dysrhythmias may be complications in anesthetic action (see chapter 20).
Measures preoperative radiology should be given to ensure two things for the vascular supply and venous sinus meningiomas. Knowing these two things sebelunya create an anesthesiologist get enough blood and nitroprusside given in case of intra-operation.
If possible, patients with meningiomas should be treated with steroids and anticonvulsants. Especially when there is vasogenic edema, which is handling systane durante and post operation difficult. The principle of equal treatment with glioma tumors. Three-point fixation of the head used and the long axis of the tumor is placed pa