62-year-old Mr. Guo was sent to the emergency department because of frequent paroxysmal involuntary convulsions in his left upper limb and short-term confusion, and then transferred to the neurology clinic for examination and treatment. Dr. Wu from the Department of Neurology, Chengda Hospital introduced that after the history of symptoms was clear, local seizures were considered in clinical diagnosis. The neurological examination found that the patient had mild weakness in his left hand, which was found to be caused by brain metastasis of thymoma. Epilepsy can be divided into generalized epilepsy and localized epilepsy, which is a brain disease that is prone to abnormal discharge of brain neurons for a long time. Seizure is a corresponding paroxysmal or transient clinical manifestation caused by abnormal computer placement. According to the clinical manifestations of seizures, the International Anti-epileptic League divided them into generalized seizures and localized seizures. Compared with generalized seizures, generalized seizures are characterized by loss of consciousness due to limb convulsions, while localized seizures are characterized by local motor, sensory or conscious disorders. Due to the different functions of the abnormal computer area and the affected brain area, local seizures will produce different clinical symptoms. Dr. Wu pointed out that symptoms such as aura (abnormal sensation), involuntary convulsion, transient disturbance of consciousness, abnormal cognitive function or response, or autonomic nerve-related symptoms are all paroxysmal or transient abnormal manifestations. Arrange brain wave examination to see if it is abnormal. Therefore, we should consider whether it is caused by abnormal discharge of local brain lesions, such as stroke or brain tumor. Therefore, brain wave examination will be arranged to see if there are abnormal discharge waves or local slow waves. If the neurological manifestations are abnormal through medical history and neurological examination, brain imaging examination will be further arranged to see if there are corresponding brain lesions, and doctors will deal with them according to the different conditions of each patient. Dr. Wu said that the local epileptic seizure of Guo's patient is that after feeling nervous and unfamiliar, the left upper limb appears paroxysmal involuntary convulsions, which extend from the left palm to the upper arm, and sometimes the convulsions will travel from the left upper limb to the left head and neck, causing the head and neck to shake and rotate involuntarily, lasting 65,438 0 and 2 minutes each time, and most of them are conscious; But sometimes there will be intermittent attacks several times in a row, and the combined consciousness will become chaotic, and the consciousness will return to normal after a few minutes. After the convulsion stops, the left hand will be weak for a while but will gradually recover. This is a typical local action epilepsy. If you have local neurological symptoms, see a doctor as soon as possible. For this paroxysmal symptom of local nervous system, such as transient abnormal sensation, involuntary convulsion and transient disturbance of consciousness, Dr. Wu suggested seeing a doctor as soon as possible, and making it clear whether it was a local seizure or other nerve-related diseases, so as to carry out fundamental treatment according to the cause. Subscribe to the health Aloha audio-visual channel, read health knowledge more easily, and pay attention to your health every day! Line @ ID: @:/charity/article/30212/62-year-old male left upper limb convulsion was actually caused by thymoma metastasis Key words: thymoma, epilepsy, convulsion, brain wave examination, Chengda Hospital Wu.