Hello: Brain tumors are also intracranial tumors, accounting for about 2% of all tumors in the body. It is more common in those aged 20-50 years, but there is no gender difference. Any kind of tumor must occupy a certain space in the brain and is an intracranial space-occupying lesion. The common ones are: (1) Gliomas formed by glial cells, accounting for about 1/3 of intracranial tumors. (2) Meningiomas formed by meningeal cells account for about 1/6 of brain tumors. (3) Schwannomas formed by the sheath cells of cranial nerves account for about 8%-10% of brain tumors. (4) Pituitary tumors formed by pituitary cells account for about 8% of brain tumors. Brain tumors can also be divided into benign and malignant. Glioma is malignant. Brain schwannomas and pituitary tumors are mostly benign, but meningiomas and pituitary tumors can become malignant. Intracranial metastases are formed by malignant tumors in other parts of the body metastasizing into the brain, among which lung cancer metastasis is the most common. The occurrence of headaches after brain tumors is caused by the increase in intracranial pressure caused by space-occupying lesions in the brain. Early detection of signs of brain tumors is very important for the patient's recovery prognosis. The following symptoms must arouse high vigilance. 1. Headache in the morning: At four or five o'clock in the morning, people are often awakened by pain from a deep sleep. The deeper the sleep, the heavier the pain. After getting up and moving around, the headache gradually reduces or even disappears at eight or nine o'clock, so it is called "morning headache", which is unique to brain tumors. Its mechanism is that brain tumors obstruct the normal cerebrospinal fluid circulation, especially after sleeping, the cerebrospinal fluid flows more slowly, forming transient hydrocephalus and causing severe headaches or even awakening from pain. After getting up and moving, blood circulation is accelerated, so headaches can be relieved. 2. Compared with the vomiting of gastrointestinal diseases, the vomiting of brain tumor patients is not accompanied by epigastric distension, nausea, abdominal pain and diarrhea. The vomiting has nothing to do with eating, but appears suddenly after a headache. "Vomiting", the vomit can often be sprayed two or three feet away. This is caused by stimulation of the respiratory center in the medulla oblongata due to increased cerebral pressure. Because children cannot express other symptoms, unprovoked vomiting is the main clinical manifestation. 3. Visual impairment: Under normal circumstances, the venous blood of the eyeball flows back into the brain through the ophthalmic veins. After suffering from a brain tumor, the cerebral pressure is increased, and the poor blood flow in the eye veins leads to stasis and edema, which damages the visual cells on the retina of the fundus and reduces vision. Some present with temporary amaurosis and temporary vision loss. As the condition worsens, persistent vision loss gradually occurs, eventually leading to blindness. Some symptoms include double vision in which objects appear to overlap with both eyes, or visual field defects (for example, patients with right-sided lesions often bump into oncoming people with their left shoulder when walking). 4. Monocular proptosis means that one eyeball protrudes forward, which may lead to incomplete eyelid closure in severe cases. Clinical statistics show that about 50% of cases of exophthalmos on one side are caused by intracranial diseases, the most common cause of which is brain tumors. 5. Phantom smell: The temporal lobe at the lower part of the brain can experience phantom smell under the stimulation of tumors, that is, you often smell smells that do not actually exist, such as the smell of burning rubber, the smell of burnt rice, etc., or Smell a strong aroma or odor, etc. 6. Transient misidentification of people. Temporal lobe tumors can also produce a sense of strangeness (actually very familiar) and deja vu (actually never in contact with the person). These symptoms briefly appear for tens of seconds to minutes. 7. Hypoesthesia: The parietal lobe, located in the middle of the cerebral hemisphere, is responsible for sensation. Brain tumors in this area will cause a reduction or even loss of various sensations in the contralateral half of the body. 8. Unilateral deafness. If there is no history of otitis media, trauma, etc., and only one ear has progressive hearing loss, it may be caused by intracranial tumor compressing the auditory nerve. 9. Late-onset epilepsy refers to those who begin to develop epilepsy in adulthood. If there is no trauma or other inducements, intracranial tumors should be considered first. If a seizure is localized to one side or begins in a limb, a brain tumor should be considered in both adults and children. 10. Hemiplegia: There are two types of hemiplegia caused by brain tumors. One is hemiplegia or hemiplegia, which is manifested by impaired movement of the affected limb; the second is ataxia of one limb, which is manifested by clumsy or unstable movements. If these two symptoms appear slowly and gradually worsen, the former is more common in tumors of the cerebral hemisphere, while the latter is unique to tumors of the cerebellar hemisphere. 11. Acromegaly is a characteristic sign of eosinophilic pituitary tumors and is more common in adults. The main symptoms are thick and thick hands and feet, protruding eyebrow arch and mandible, and ugly appearance. Pituitary tumors in children can stimulate excessive production of growth hormone and cause gigantism. 12. Abnormal sexual characteristics: Non-pregnant amenorrhea and lactation in women of childbearing age are often the first symptom of pituitary tumors.
Male patients may present with signs of abnormal sexual characteristics such as impotence, loss of pubic hair, armpit hair, and beard, and thickening of subcutaneous fat. Once one or more of the above signal symptoms of brain tumors appear, you must be highly vigilant and go to the hospital as soon as possible to ask a doctor for a systematic examination. This can be done through brain ultrasound, cerebral blood flow, electroencephalography, cerebral angiography, CT and MRI* **Vibration examination and other means to make an accurate diagnosis and arrange treatment as early as possible.