Very rare: Brain tumors are rare in 21 yr old but age is no exemption for tumors, very good news contrast ct is normal means brain tumor, is an unlikely diagnosis you should be a happy news , leave to your doctors to find out the cause of the symptoms , as. There are several non tumor causes for head ache good luck you will be fine.
Answered 6/19/2020
5.3k views
I recommend MRI: Ct head scan without contrast is not the perfect test to totally rule out unusual causes of headache. I would recommend seeing a neurologist and have good evaluation. If any question, you should have MRI of brain without contrast. Radiologist can then add contrast study as needed.
Answered 1/5/2019
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