i had surgery to remove a large meningioma nearly three years ago. it saved my life as i was in danger of a stroke and losing my vision. i am 37 with two children, the operation itself does have risks and is scary but when you think of your family you have to go through it and i am glad i did.
In general, meningiomas are benign lesions. While I have not seen your husband's scans, meningiomas can cause seizures. If they are large and are causing symptoms, most neurosurgeons would recommend removing it. For the smaller lesions, surgery, radiation, and observation are all options. The decision for choosing is complex and in general take into account history (i.e. symptoms or demonstration of meningioma progession over time), size, location of the meningioma, and they patient''s preferences. While it is a distressing period, perhaps getting another opinion can help you get more information.