Should I be worried about getting a call from my doctors office to schedule an appointment hours after my MRI?

I was born with tumor behind my eye and had surgery to remove most of it when I was a baby. Its still there, but it supposedly not growing. Well, I met my new doctor about a month ago and since my last mri was 16 years ago, she had me get another one.

I just got back from my mri 4 hours ago and I got a call from the doctors office to schedule an appointment for next week. I dont know what it could be for besides the mri. Should I be worried? Is it possible to get mri results back that quickly? If they did have anything to do with the mri then couldn't she just call me to talk about it?
Should I be worried about getting a call from my doctors office to schedule an appointment hours after my MRI?
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