Are there specific radiographic features that would alter your management of a presumed meningioma?

This question is particularly relevant for a patient who has a history of a cancer and a dural-based lesion that may represent metastasis or meningioma. Edema, as @Dr. First Last related, may suggest atypical histology. Necrosis may suggest a more malignant tumor, including malignant meningioma or d...

Edema of adjacent brain would suggest atypical histology.