benign brain tumor
Introduction
Introduction to benign brain tumor Benign brain tumors are tumors that grow in a certain part of the brain (mostly outside the brain's nerve tissue), have good tissue differentiation, slow growth, and can cure. Such as meningioma, pituitary adenoma, embryonic residual tumors and vascular tumors. Intracranial tumors can occur at any age and are most common in the 20-50 age group. Children with more cranial fossa and midline tumors are more common. Benign brain tumors grow slowly, the capsule is relatively intact, and the surrounding tissues are not infiltrated and well differentiated. Malignant brain tumors grow faster, have no capsule, have no obvious boundaries, and exhibit invasive growth and poor differentiation. Whether benign or malignant, it can squeeze and shift normal brain tissue, causing an increase in intracranial pressure and threatening human life. basic knowledge Sickness ratio: 0.01%-0.015% Susceptible people: no special people Mode of infection: non-infectious Complications: Giant Disease
Cause
Cause of benign brain tumor
1. Etiology and pathology The cause of brain tumors is still unclear. At present, most scholars believe that the results of a combination of various factors are summarized as follows:
1 brain embryo tissue development abnormalities.
2 genetic factors, in recent years, gliomas have a genetic predisposition.
3 chemical factors, in recent years, the carcinogen methyl choline and methyl nitrofurea or ethyl nitrosourea oral or intravenous injection can cause glioma. Some viral causes, some foreign scholars can use some viruses to induce small tumors in a variety of animals, but it has not been confirmed in humans.
2, Chinese medicine believes that there are several pathologies.
1 cold gas in the meridians caused by qi stagnation, swelling and accumulation.
2 spleen and kidney yang deficiency, Qingyang does not rise, phlegm and dampness endogenous, sputum obstruction of meridians, causing fascination.
3 liver blood deficiency, lack of kidney essence, or congenital deficiency, causing liver and kidney yin deficiency, liver wind movement, eye hanging double vision, convulsions tremor.
4 cult poison invasive, liver stagnation, liver fire on the inflammation, qi and blood on the reverse, become a damp heat silicosis, so the internal cause of intracranial tumors have spleen and kidney yang or liver and kidney yin deficiency. Because of the cold, the invasion of evil spirits and the formation of phlegm and stasis, etc., the turbidity accumulates in the brain and becomes a tumor.
Prevention
Benign brain tumor prevention
1, pay attention to food hygiene, to avoid benzopyrene, nitrosamines and other carcinogens into the body.
2, pay attention to personal hygiene, exercise, enhance resistance, prevent viral infection.
3, to avoid brain trauma, brain damage should be cured in time.
4. People who have suffered from intracranial tumors should not give birth again.
Complication
Benign brain tumor complications Complications
It often causes complications such as visual impairment and elevated intracranial pressure.
Symptom
Symptoms of benign brain tumors Common symptoms Vomiting Increased intracranial pressure Visual impairment Central deafness Optic papilledema Tinnitus
1. Headache is the earliest and most common symptom of brain tumors. It is seen in 82%~90% of patients, varying in degree. It is intermittent at first, and it is more and heavier when it is awake in the morning and at night. Frequent blunt pain or pain in the forehead or two jaws and become persistent. Coughing, exerting force, sneezing, leaning over, and bowing can increase headaches. Because the skull is not closed, the cranial suture is separated when the intracranial pressure is increased, so there is no headache, only the dizziness. Headaches are often ineffective with general analgesics, while dehydrating agents are effective.
2, vomiting is one of the main symptoms, about 2 / 3 of patients. Common in severe headaches, often accompanied by nausea, vomiting is often spray. Severe people can not eat, spit after eating.
3, papilledema is the most important objective sign of increased intracranial pressure. The patients under the curtain and the midline tumors appeared earlier, and the benign tumors on the screen appeared later, and some did not even appear. The early stage of papilledema does not affect vision, and visual field examination shows an increase in physiological blind spots. When the papillary edema lasts for weeks or months, the optic disc becomes pale, vision begins to diminish, and the visual field shrinks toward the center of the heart, which is a manifestation of optic atrophy. Once paroxysmal black sputum occurs, vision will drop rapidly and even become blind quickly. At this time, even if the surgery removes the intracranial hypertension, the visual acuity often cannot be improved.
Examine
Examination of benign brain tumors
1. There are no obvious symptoms in the early stage. As the tumor grows, headaches, vomiting, and visual disturbances gradually appear. Symptoms are progressively worse. Some can see dizziness, diplopia, mental symptoms, seizures, neck stiffness, as well as breathing during cerebral palsy, slow pulse, increased blood pressure and other changes. Different symptoms and signs are caused by different cancer sites.
2, X-ray film: check the evidence of increased intracranial pressure and positioning.
3, ultrasonic detection: the midline wave shifts to the healthy side, the size of the lesion position can be seen, and some tumor pathological waveforms can be seen.
4, isotope brain scan visible isotope concentration phenomenon.
5, cerebrovascular or ventriculography: can be used for positioning and qualitative diagnosis.
6, CT or MRI examination can show the contour of the tumor and surrounding edema, ventricular enlargement or displacement.
7, EEG examination: there is a localized slow wave or diffuse rhythm abnormality.
Diagnosis
Diagnosis and differentiation of benign brain tumors
diagnosis
According to the clinical signs combined with CT examination is not difficult to diagnose.
Differential diagnosis
Brain tumors should be differentiated from epilepsy, brain abscess, cerebrovascular disease, brain arachnoiditis, optic nerve papillitis, and inner ear vertigo. Careful examination, most of them are not difficult to distinguish.
