Patient: The patient is a 40-year-old female who has been in poor health for many years. At the beginning of October last year, she suddenly fainted and sought emergency medical examination to confirm the diagnosis, and underwent craniotomy for treatment. After the operation, the right limb was not dominated, and the mouth and eyes were crooked and small. After a few days, she recovered, but her right hand and foot still do not move much for six months now, and her armpit and leg move like a patient with thrombosis. The review revealed that the cranium was filled again and affected the nerves. If there is any cure plan or treatment suggestion Beijing Tiantan Hospital Neurosurgery Department: Intracranial cholesteatoma is a congenital benign tumor (intracranial cholesteatoma–congenital belign tumour), also known as epidermoid cyst, epithelioid cyst or pearl tumor. The name cholesteatoma or pearloma is based on the cystic content of the tumor and the appearance of the tumor, while epithelioid cyst or epidermoid cyst is based on the origin of the tumor. The tumor has a cyst wall, which is covered with epithelial cells like human skin. This layer of cells is constantly metabolizing and many dermatological components fall into the cyst, causing the cyst to grow and compress the nerves and blood vessels, resulting in symptoms. Surgery is the only treatment method, whether it can be cured depends on whether the cyst wall of tumor can be completely removed, the surgeon has to weigh the advantages and disadvantages of complete removal of cyst wall and the risks, most patients have no difficulty in removing the cyst content of tumor, but it is difficult to remove the cyst wall, mainly because the cyst wall and important neurovascular adhesions are close, the cost of forcible separation is too big, in addition, for this kind of benign slow growing tumor, the residual cyst wall has little effect on the patient. In addition, for this kind of benign slow-growing tumor, a little residual cystic wall does not affect the patient much. Some patients develop the disease in middle age, and most of them have no problem to survive another middle age period after resection of the cystic wall. We will send MRI to you when it is convenient.