The diagnosis and treatment of meningioma

  Meningioma is the second most common intracranial tumor (after glioma), with an incidence of about 2/100,000 and accounting for about 20% of intracranial tumors, most meningiomas are benign, and very few, such as meningeal sarcoma, are malignant.  Most meningiomas are benign tumors, and very few, such as meningiosarcoma, are malignant. About 85% of meningiomas are located on the curtain (cerebellar curtain), and the rest are located under the curtain, with the convex surface of the brain and the parsagittal sinus being the most common, while the rest have no obvious regularity in distribution.  CT examination shows that the tumor is located outside the brain, with clear border, uniform density, broad-based contact with the dura mater, uniform reinforcement, and meningeal tail sign; MRI examination shows equal T1 or slightly low signal, T2 signal can be equal signal, high signal (suggesting relatively soft tumor texture), low signal (suggesting relatively hard tumor texture). After strengthening, the tumor is obviously enhanced.  Because meningiomas are mostly benign tumors, treatment is mainly surgical resection, with radiation therapy, chemotherapy rarely (mainly for meningeal sarcoma, chemotherapy can be considered), and gene therapy (mainly for meningioma, which is still in the research stage). Whether a meningioma requires treatment depends on the location and size of the meningioma, whether there is pressure on the surrounding tissues, and whether there are symptoms of increased intracranial pressure. If the meningioma is relatively small (e.g., 1 cm) or less, and there is no obvious pressure on brain tissue and cranial nerves, it can be observed and it is recommended to review the tumor once a year to see if there is any change.  For radiation therapy, radiation therapy (mainly gamma knife therapy) can be performed after the surgery is not complete and the decompression is sufficient to control or slow down the recurrence of the tumor; or if the patient cannot tolerate the surgery, radiation therapy can be considered directly (without intracranial pressure and pressure on cranial nerves or haunts). This type of meningioma is mainly due to the relatively deep location of the tumor and the small size of the tumor (usually below 3 cm), which has no obvious compression symptoms on the brain tissue and cranial nerves.  Because chemotherapy and gene therapy are relatively rare, they are not introduced. Finally, I wish all patients a speedy recovery!