Establishment and Validation of an Integrated Model to Predict Postoperative Recurrence in Patients With Atypical Meningioma.

Background: This study aims to establish an integrated model based on clinical, laboratory, radiological, and pathological factors to predict the postoperative recurrence of atypical meningioma (AM).

Materials And Methods: A retrospective study of 183 patients with AM was conducted. Patients were randomly divided into a training cohort ( = 128) and an external validation cohort ( = 55).