Video: Meningiomas more common in women

>>> we told you last night, sheryl crow has revealed she has a benign brain tumor . she's a breast cancer survivor, a mother of two who has raised a lot of money for cancer causes and charities. we learn more about her specific condition. turns out it's not all that uncommon. our report from our chief medical editor dr. nancy snyderman .

>> for more than two decades, sheryl crow has enjoyed enormous popularity and an enduring presence on america's stage. now, the breast cancer survivor is making health headlines again. this time, announcing she has a benign brain tumor . in a message on twitter, she assured fans she's fine, writing it's noncancerous, feeling healthy, happy, and working on my new record. her tumor called a meningioma accounts for almost 30% of tumors in the united states .

>> many people harbor them.

>> crow was reportedly diginosed in november after having problems with her memory. at concert earlier this year, she koort remember the lyrics to her song. it's live i'm 50, what can i say

>> it's unclear if that incident was related to the tumor. but her announcement is putting the spotlight on a frightening but not uncommon diagnose. it's estimated up to 10,000 people in the united states are diagnosed in the u.s. each year. they're three times more common in women, particularly in those between the ages of 40 and 70.

>> those tumors can change and grow as well.

>> susan was diagnosed just a few weeks ago.

>> we'll take it six months to a year at a time and if nothing changes, then this is the way it's going to be.

>> because susan has no symptoms, she's passing on surgery for right now. that underscores the most important thing, a benign tumor can be in a bad spot where sometimes, brian, it's in a spot that required immediate attention, but anydiagnosis, take a brea th, weigh your options.

>> interesting story. we're pulling for sheryl crow , of course.

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