Brain tumors include all tumors inside the skull or in the central spinal canal. Tumors are formed as a result of uncontrolled cell division and are divided into groups according to the primary focus and cell structure. According to the first criterion, there are primary tumors. It is, those that develop from brain tissue, its membranes and cranial nerves. Secondary tumors are also observed. These are tumors of metastatic origin, that is, when metastasis got inside the skull originated in other organs.
Brain Tumor Classification
The last classification of tumors of the central nervous system according to the cellular composition was developed in 2007, it describes more than 100 different histological subtypes of CNS tumors, combined into 12 categories.
The most common among them are:
- neuroepithelial tumors develop directly from brain tissue and make up 60% of all types of tumors. The most common type is glioma. The disease has 4 degrees of malignancy, can occur at any age and in any part of the brain or spinal cord. Gliomas are not treatable.
- meningeal tumors develop from the tissues of the meninges. Meningioma is a tumor that grows from the tissue surrounding the brain. It makes up to 25% of all primary intracranial neoplasms.
- pituitary tumors (pituitary adenoma) are formed from pituitary cells. It often develops on the background of traumatic brain injury, neuroinfection, intoxication, pathology of pregnancy and childbirth.
- cranial nerve tumors (neuromas) are benign tumors, occurring at any age, more often in women. The prognosis of the disease is favorable, after surgical treatment the disease is eliminated without consequences for the patient.
Due to the fact that the tumor is located inside the skull, it is difficult to diagnose this disease in a timely manner. Sometimes large tumors give not enough symptomatology but small tumors are accompanied by vivid symptoms. While the symptoms are mild, patients rarely get to the doctors, a person seeks the help of a specialist only when his state of health begins to deteriorate rapidly.
Typical cerebral symptoms specified by My Canadian Pharmacy
Headache is the most frequent and early symptom of a brain tumor. The pain may be dull, inconstant. The appearance or pain aggravation is characteristic in the second half of the night or in the morning.
It is typical for a headache to occur or intensify only in the case of stress or physical loading.
Vomiting is also a typical symptom, most often occurs in the morning, on an empty stomach and on the background of a headache. Vomiting is not associated with food intake and occurs without nausea. Sometimes vomiting occurs due to a change in the position of the head. As an isolated symptom vomiting is noted in children.
Dizziness, a sense of the rotation of objects or one’s body is a common symptom of brain tumors. It occurs in the form of attacks, with a certain position of the head.
Usually, this symptom manifests itself in the late stages of the disease.
Mental disorders include impaired memory, thinking, perception, and ability to concentrate. Patients cannot remember the names of loved ones, their address, poorly oriented in space and time, they become irritable, frivolous, aggressive, prone to unmotivated actions, manifestations of negativity or apathetic, sluggish. Sometimes there are delusions and hallucinations.
Convulsive (epileptic) seizures may be the first symptom of the disease, especially if there is no apparent reason after the age of 20 years. The frequency of seizures usually increases within the time.
Vision problems include flashing flies. Usually, this symptom is observed in the morning. There may be a decrease in visual acuity, which, without intervention, can lead to optic nerve atrophy and blindness.
Also, the patient may complain of the absence of pain or tactile sensitivity, impaired hearing or speech, hormonal disorders. It can be difficult for a patient to maintain balance, especially with his eyes closed.
The speed and intensity of the symptoms development depend on the location of the tumor and the characteristics of its growth. On the basis of these symptoms, the location of the tumor is determined. In fact, tumors can put pressure on some parts of the brain, which leads to a clear manifestation of symptoms.
If there are at least several of these symptoms, you need to contact a therapist who will evaluate the patient’s condition and refer you for the tests necessary to diagnose cancer.
Obligatory methods of examination include determination of the activity of tendon reflexes, testing of tactile and pain sensitivity. If a brain tumor is suspected, the patient is referred to computed tomography (CT) or magnetic resonance imaging (MRI). As a result of these studies, the decision is made about the hospitalization of the patient in a specialized hospital. The oncologic dispensary carries out examinations, the purpose of which is to confirm the diagnosis and to decide on the treatment tactics.