Characteristics of brain tumors and how to diagnose

By | December 16, 2011

That a variety of brain tumors brain tumor, is a common disease in the nervous system, one of the functions of the human nervous system great harm. Generally divided into two major categories of primary and secondary. Primary brain tumors can occur in brain tissue, meninges, cranial nerves, pituitary, blood vessels and other remnants of embryonic tissue. Secondary tumor malignant tumors in other parts of the body refers to the transfer or the formation of invasive intracranial metastases. Brain tumor, also called cranial lesions are.
Features and diagnosis of brain tumors are as follows:
The tumor in the skull called the brain tumor. Divided into benign and malignant brain tumor two, about half and half, according to the source of the tumor can be divided into two major categories of primary and secondary. Primary brain tumors to the most common glioma, accounting for more than 40%; secondary brain tumors from the nasopharynx, lung, breast, liver and kidney metastasis from primary cancer. Brain tumors can occur at any age. 10 years old and 30-40 years for the two incidence peaks, gender difference is not large. About 70% of adult brain tumors occurred in the cerebral hemispheres, lateral ventricles, and pituitary gland. 70% of children with the hair in the cerebellum and fourth ventricle and brainstem. Different parts of the brain tumor, the symptoms and signs are different. Since there is no flexibility shell skull, intracranial tumor growth and expansion will inevitably lead to the oppression of occupying the adjacent normal tissue, disrupting their function and produce corresponding symptoms. So whether it is benign or malignant, primary or secondary, if not in time, will be a serious threat to life. Brain tumor demonstrated by its symptoms, can be divided into five clinical stages: (1) asymptomatic; (2) only local symptoms; (3) increased intracranial pressure; (4) disturbance of consciousness; (5) drowsiness symptoms.
Period in the five symptoms of and the only element of local symptoms are easily overlooked, only increased intracranial pressure occur only when it is easy to think the incidence of brain tumors.
Features and diagnosis of brain tumors brain tumors often the following clinical manifestations:
(1) symptoms of increased intracranial pressure due to brain tumor growth to increased intracranial pressure, there are three main symptoms: first, the headache is the most common symptoms of brain tumors, early onset often intermittent, and further development of persistence, for pain, for the pulsatile nature of dull pain, pain or pressure pain, crack-like pain. Many parts of the Ministry of headache in the forehead, or after double-Yen Department of occipital, pain location is not consistent with the tumor location. Second, vomiting, usually caused by vagus nerve stimulation, together with lesions caused by the increased intracranial pressure. Vomiting often occurs in the morning, or when the headache is severe, vomiting, ejection was no nausea, nothing to do with diet. Third, visual disturbances, increased intracranial pressure caused by optic disc edema. Can be identified with the ophthalmoscope optic disc edema. Patients can be expressed as decreased vision, to see things blurred, may have diplopia, hemianopsia or blindness.
(2) memory was impaired patients with psychiatric symptoms, often found themselves or their families, "forgetful," or late reactions ravioli, thinking ability, understanding, decreased ability to orientation. Severe cases of dementia, lethargy and even coma.
(3) multiple seizures and epilepsy due to chronic brain tumor caused the growth. Patients may appear suddenly collapsed mouth, eyes, face, limbs twitching, foaming at the mouth, urinary incontinence, gradually clear after a few minutes. Some patients can be expressed as a limb or one side of the upper and lower limbs twitching.
(4) diagnosis of brain tumors and other performance characteristics of the patient can often dizziness, ataxia, tinnitus, hearing loss, facial numbness, aphasia, irregular menstruation, paralysis, hemiplegia, and endocrine disorders such as performance.
When a patient has a brain tumor signs of self-discovery should be immediately to the hospital for brain surgery or to find a neurologist to be checked. Neurological examination, including: cranial nerves, motor function, sensation, reflection, reflection and pathology. Meanwhile optional X-ray examination, various imaging, ultrasound, EEG, radioisotope examination, CT examination, MRI and so on. For early diagnosis and early treatment.

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