Meningioma is a common intracranial tumor, usually seen in middle-aged and elderly people. With the development of modern imaging techniques, especially the widespread use of MRI and CT, meningioma has been increasingly found in adolescents. Adolescent meningioma accounts for a small percentage of meningioma, only about 2%, but because the overall incidence of meningioma is relatively high among intracranial tumors and the overall base is relatively large, adolescent meningioma is not uncommon. Miss Xiao, who is in her twenties, is getting ready to get married this year, but she has been experiencing headaches for some time, and at first she didn’t care, but later it became more and more serious, and when she was examined in the hospital, she found a tumor in her brain, which really scared Miss Xiao, who didn’t think she was so young to have a tumor in her brain! Miss Xiao’s tumor was initially diagnosed as a meningioma before surgery and needed to be surgically removed, but the meningioma was closely related to an important vein in the brain – the transverse sinus, and the MRI before surgery showed that the tumor was likely to have grown into this important blood vessel. Ms. Xiao underwent meningioma resection, and it was found that the tumor was rich in blood supply and had partially grown into the blood vessel, and the cerebellar tissue was severely compressed. The surgery went smoothly and the tumor was completely removed by the time Ms. Xiao returned to the ward. Less than a week after the surgery, Ms. Xiao was discharged from the hospital to recuperate, and the wedding was prepared to be held as scheduled. The final pathological type of Ms. Xiao’s meningioma was meningeal dermal cell type with active local proliferation, requiring close review to monitor for possible tumor recurrence. The most common symptoms of adolescent meningioma are also symptoms of increased intracranial pressure due to tumor compression, such as headache, vomiting, vision loss, and possibly seizures and neurological dysfunction. Adolescent meningioma is relatively fast growing and even a large proportion of the pathological types are non-benign or malignant, so the chance of recurrence is relatively high and requires close follow-up and review after surgery.