Diagnostic points: 1. The lesion is usually located in the convex surface of the brain, parsagittal sinus, and pterygoid crest; 2. MR scan signal is homogeneous, T1WI is equal or slightly low signal, T2WI is isosignal, enhancement is obviously homogeneous reinforcement, “meningeal tail sign” is visible. Differential diagnosis: 1, hemangioepithelioma: often lobulated, often with necrosis and cystic changes, more obvious peripheral flowing vascular shadow, connected to the dura mater by narrow base, bone destruction is more common; 2, astrocytoma: meningioma on the convex side of the brain needs to be differentiated from this disease, its degree of enhancement is not as obvious as meningioma, density or signal is not uniform; 3, pituitary tumor: suprasellar meningioma needs to be differentiated from this disease, pituitary tumor grows from the saddle to the saddle, density/signal is not uniform. The density/signal is not uniform, and hemorrhage, necrosis and cystic changes are more common.