Pain increased intracranial pressure and cerebral form of brain tumor and surrounding tissue water itself, tumor hemorrhage, cerebral hemorrhage often leads to compression of the brain parenchyma generally increased intracranial pressure, causing a significant shift in brain parenchyma, and the weakest in the Tension the site of the pain caused by the formation of the brain center of positive life medullary injury in the event of respiratory failure can cause rapid death.
1. Cause either primary or metastatic brain tumors can occur in acute intracranial hypertension and brain eggplant formation. Adult primary malignant brain tumors to glioblastoma multiforme tumor is more common, but common malignancy in children, compared with intracranial medulloblastoma. Metastatic brain tumors more common than primary brain tumors, accounting for 18% -23 brain tumor%. The most common sources are lung, breast, kidney and malignant melanoma, followed by the gastrointestinal tract, thyroid, uterus, ovary, testis, prostate, malignant lymphoma. Intracranial metastatic carcinoma of unknown primary tumors, about half came from the lung cancer metastasis.
2. Clinical manifestations
(1) symptoms of increased intracranial pressure: about 88% of the patients had headache, and early paroxysmal, or become aggravated after paroxysmal sustained. Often accompanied by sudden vomiting and diet related. Increased intracranial pressure may also occur after the visual impairment, visual field and optic disc edema, reduced retinal changes.
Acute symptoms of central nervous system, (2) brain cancer symptoms: patients may have impairment of consciousness, irritability, coma into the future; lag holes and later progressive expansion of narrow, light slow or disappear, eye fixed or asymmetry ; shares the body recover from illness and then converted to twin hemiplegia flaccid paralysis. Slow, deep breathing, pulse slow and loud, blood pressure, pulse pressure increased, which was increased intracranial pressure crisis. Small number of patients even sudden heart rate, respiratory arrest, coma and even death.
(3) systemic symptoms: There are epilepsy and paralysis or hemiplegia. Change in mental status of patients, such as mental retardation, lack of concentration, personality changes, confusion, drowsiness, etc. are often the first clinical symptoms appear.
3. Diagnostic detailed medical history, neurological examination and fundus examination is very important. Most metastatic brain tumors have a history of the primary tumor. Patients suspected of having a brain tumor should be a special inspection. These tests include:
(1) skull and chest X-ray film.
(2) X ray special examination, the CT, MRI or DSA (digital subtraction).
(3) selective for the lumbar puncture and intracranial pressure monitoring.
Acute symptoms of central nervous system, (4) Other aid check: If radionuclide brain scan, cerebral angiography, EEG, head ultrasound, radionuclide