Disturbed and peculiar behavior is one of the clinical manifestations of mental disorder associated with intracranial tumor. Mental disorder associated with intracranial tumor refers to the mental disorder associated with the invasion of brain parenchyma by intracranial tumor and compression of adjacent brain tissues or cerebral blood vessels, resulting in the destruction of brain parenchyma or increase of intracranial pressure, and about 40% to 100% of patients suffering from intracranial tumor can develop mental symptoms. What are the examination methods of mental disorder associated with intracranial tumor? 1.Neurological examination Neurological examination is to determine whether there is any damage to the nervous system and the location and degree of the damage, i.e. to solve the “localization” diagnosis of the lesion. The examination should be carried out in a certain order and in combination with the general physical examination. Usually, the cranial nerves are examined first, including their motor, sensory, reflex and vegetative functions; then the motor system and reflexes of the upper and lower extremities are examined sequentially, and finally the sensory and vegetative nervous systems are examined. The examination should also be focused according to the history and initial observations, especially in the examination of critically injured patients, which is more important. In addition, consciousness, aphasia, loss of use, loss of recognition and other cortical dysfunction, also belong to the scope of neurological examination. 2, CT examination CT is a full-featured condition detection instrument, it is the abbreviation of electronic computer X-ray tomography technology, CT examination is based on different tissues of the human body on the absorption and transmission rate of X-rays, the application of extremely sensitive instruments to measure the human body, and then the measurement of the data obtained into the electronic computer, electronic computer processing of data, the human body can be examined Section or three-dimensional image of the part of the body to find any part of the body of small lesions. 3, magnetic resonance imaging (MRI) MRI is a new high-tech imaging examination methods in recent years, is the early 80s only applied to the clinical medical imaging diagnosis of new technology. It has the unique advantages of no ionizing radiation damage, no bony artifacts, multi-directional (cross-sectional, coronal, sagittal, etc.) and multi-parameter imaging, high soft tissue resolution, and can display vascular structures without the use of contrast agents. 4.Cerebral angiography Cerebral angiography is a new X-ray examination technique that has been widely used in the clinic since the 90’s. It involves selecting an access artery, usually the right femoral artery, placing an arterial sheath through the right femoral artery, selecting a different catheter through the arterial sheath, selecting the artery to be shown under the guidance of a guidewire, and injecting iodine-containing contrast. The trajectory of the vessel through which the contrast agent passes is continuously photographed and imaged by electronic computer-aided imaging as digital subtraction angiography (DSA) of the cerebral vessels.