What does CT scan of head without contrast show?

Many things. It can detect many conditions. Ct is particulaly good at detecting bleeding in the acute setting and hydrocephalus, and some masses. It's not nearly as good as MRI for looking at small structures and white matter disease. Both ct and MRI are usually more sensetive and specific when contrast is given.

Related Questions

Can a non contrast head CT scan miss anything?

Yes. A ct scan with IV contrast will be more sensitive for detecting lesions than a non-contrast ct, and an MRI with contrast is even better than a ct scan. Read more...

Does the head CT scan with and without contrast I got affect my ability to have children in future? Does it mean that I can't marry now? I'm only 26yr

Confusing question. Having a head ct scan (radiation & contrast agent) by itself does not impair a persons fertility. As stressful as having the study may have been to you, it's hard for me to understand why you think it would.A more realistic issue is why you had the study to begin with & do you have a condition that involves a poor outcome. Read more...
No Worries. The radiation from 1 head ct does not measurably increase your risk of cancer in the future. The radiation was no where near your testicles, and even if it was, there is no measurable risk for birth defects in children. Finally, the contrast was eliminated from your body within 24 hours, assuming no kidney problems. Read more...

I feel my head is exploding and current is going through my head, CT scan shows I have a mucous retention cyst in the anterolateral left spheniod sin?

Head ache. Mucous retention cyst will not cause those symptoms and it is likely an incidental finding unrelated to your headache. Since we don't know anything about you, not even something as basic as your age, let alone your medical history and meds, we cant offer you relevant and useful response especially when there is not a real question posed. Read more...

I been sneezing alot, head pressure when I bend down and dizzness/ my head feels heavy. Had head CT scan no contrast recently, no problems. Any ideas?

Allergy symptoms. It sounds like you may be experiencing seasonal allergy symptoms. Start by seeing your regular doctor to begin some symptom control. Consider allergy testing to find out what specific allergens you are reacting to. Read more...
Sinus disease? Have someone review your head ct to see how many of your sinuses were imaged. Your symptoms sound like sinus disease. See your health care provider and consider a consult to ent, possibly with a sinus ct if the head ct did not cover that anatomy. Read more...