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Meningiomas are the most common benign intracranial tumors. While most patients with meningiomas are advised to undergo surgery, these authors describe long-term outcomes for 12 patients (from a larger series of 100) who did not have surgery.
In five cases, the decision not to operate was made because the meningioma was an incidental finding on an imaging study done for unrelated symptoms. In the other seven, the meningioma reasonably accounted for symptoms, but a nonsurgical approach was taken based on potential loss of function or surgical risk due to the tumor location.
During a mean follow-up of nine years, only one meningioma has grown on serial imaging studies (less than one centimeter in each dimension); this patient has remained asymp…