Fourth ventricle syndrome

Outlined in the fourth ventricle medulla, pons and cerebellum between the end of the rhombus shaped the schnabelolides Cone, continued under the central canal of the spinal cord. Even on the brain water pipes, as cerebrospinal fluid. Fourth ventricle syndrome often caused by tumor oppression. Cause pathogenesis end of the fourth ventricle and the fourth ventricle from the choroid plexus and the cerebellar vermis of the fourth ventricle tumor invasion, vestibular nucleus can be influenced by the autonomic nervous system structure and early high intracranial pressure, and other symptoms of the fourth ventricle. A clinical performance. Intracranial hypertension symptoms : the fourth ventricle tumors, high intracranial pressure symptoms, earlier headache, vomiting and obvious palilledema. 2. Muscle tension changed : oppression of the fourth ventricle lesions often appear muscle tone change. If the neck muscle tension increase. 3. Imbalance : vestibular nucleus of stress or cerebellar vermis affected, there can be imbalance. Some patients with persistent imbalance incidence, walking difficulties, there is lean forward or backward. 4. Cranial nerve and autonomic symptoms : As the proliferation of tumor development, and advanced cases of the disease abroad, IX, X, Ⅶ right cranial nerve symptoms. Some appeared section V, VI cranial nerve palsy. Autonomic symptoms of cardiac arrhythmia, respiratory rhythm disorders, unstable blood pressure, polyuria, diabetes. Differential diagnosis (1) the fourth ventricle tumors (tumor of fouth ventricle) Fourth brain Room tumor, appeared in the early symptoms of intracranial hypertension, and many of them intermittently, sometimes with the head position. Rapid rotation can be induced headache, vomiting intensified. Headache patients with advanced significantly more in occipital, and the proliferation of the neck and shoulders, there were obvious early as the papilledema, longer time to be blind. (2) of brain stem tumor (brain stem tumor) occurs in children and youth. Most slow onset, sexual heavier, longer duration, a few cases of remission and relapse is. In addition to brain tumors, intracranial hypertension levy is not significant, or to late emerging. Slow cross-sexual paralysis salient features of this disease, but with multiple cranial nerve damage, there will be the first forced open spaces and the eyeball. (3) cerebellopontine angle tumors (cerebellopontine angle tumor) of the disease conducted more slowly, the symptoms often develop a certain order to cranial nerve dysfunction mainly, the disease was particularly prevalent in the side. The most common obstacles to the hearing, trigeminal nerve receded times. About half of these patients to facial paralysis, about 30% of patients after cranial nerve obstacles. Intracranial hypertension and ataxia rare, there is also late. Half of patients to palilledema. (4) cerebellar hemisphere tumors (tumor cerebelar hemisphere) of the patients Most have increased intracranial pressure, and often the first symptom of headache, pain in the posterior occipital often, the increasingly frequent migraine attack, accompanied by nausea, vomiting, palilledema and decreased visual acuity, some diplopia. Have high intracranial pressure foramen magnum hernia, the patients performance forced the first place. Common trigeminal nerve and facial nerve, auditory nerve and glossopharyngeal nerve damage and symptoms of upper and lower extremities ataxia, nystagmus, dizziness. (5) Stroke intracranial tumor (intracranial tumor apoplexy) more rapid onset in the original headache on the basis of a sudden increase, accompanied by vomiting and palilledema contour cranial symptoms, and varying degrees of neurological damage.