Brain stem is what disease has what symptom

Brainstem is not a disease is a part of the human body, located in the lower part of the brain, between the spinal cord and the diencephalon, is a small part of the central nervous system, irregular columnar shape, brainstem from bottom to top, composed of medulla, pontine mesencephalon three parts, medulla below the spinal cord, brainstem diseases, such as midbrain lesions often accompanied by vertigo, pupil changes, oculomotor nerve trochlear nerve damage and other manifestations. For example, pontine lesions are often accompanied by dizziness, limb numbness, weakness, language clumsiness and other manifestations. If brainstem lesions affect the ascending reticular activation system, they can be manifested as consciousness disorders, and in severe cases, they may be life-threatening. It is recommended to standardize treatment under the guidance of professional doctors.