FASN and Anaplastic (Malignant) Meningioma: For example, the expression of fatty acid synthase (FASN) is up-regulation in malignant meningioma, and inhibition of FASN can inhibit the proliferation of meningioma cells.294 Song et al. reported that FASN may be a target for malignant meningioma.295 The future diagnosis and treatment of meningioma based on molecular genes may bring more hope to malignant meningioma patients.