Doctor insights on:
Mr Brain And Orbits With Contrast
A friend had a standard brain and orbits pre and post contrast mriperformed.There are subcentimeter bilateral parotid lymph nodes.What does that mean?
Previous infection: The parotid gland is the saliva gland behind our jaw and under our ears, and it contains lymph nodes. These lymph nodes may become larger in response to infection. Intraparotid subcentimeter lymph nodes are likely in response to previous infection (upper respiratory, oral, skin, for instance). Your friend may need formal evaluation by an ENT doctor for reassurance, however. ...Read more
Had MRI which believe was ok now being sent for another of brain and orbits with no explanation as to why?
Additional views: A brain MRI is a survey of the entire brain and includes the orbits. But a dedicated MRI with attention to the orbits looks more closely at the eyes and the nerves surrounding the eyes. It takes fine slice through the optic nerve that would not have been included in the typical MRI scan. ...Read more
That depends: Basically to better evaluate the brain and orbits than you would see with a ct scan. Subtle findings are better seen with an mri- and it is frequently ordered after a negative ct scan. The combo 'brain and orbits' MRI is often ordered by physicians looking for signs of multiple sclerosis ( i would ask your doctor why they ordered it ). ...Read more
Anything abnormal: All scans are compared with what the structures look like when normal. If something is abnormal, therefore different than normal, the job of the radiologist is to identify it and determine as best as possible what it is. The same goes for orbits (containing eyes, eye muscles, etc.) and brain scans looking for things different than normal. ...Read moreSee 2 more doctor answers
What does a MRI of the brain and orbits show? Does it show back of head and spine even if you lay on the back of your head?
Why do I keep loosing more and more field vision ? I keep being seen by Eye Specialist every 4 months. Had Orbit scan and brain scan, came back normal
Why do I need a brain and orbit MRI if i've not had optic neuritis and my last brain and spine MRI was ok? What are they looking for?
Progression: I am assuming you are dealing with ms? If you are, then the MRI is likely to monitor progression of lesions. If you did not have any lesions prior then they may be looking for new lesions that could suggest changes in disease progression or a lack of new lesions defining response to certain treatments. While i cannot say for sure without knowing more, that would be a normal course of action. ...Read moreSee 1 more doctor answer
If brain mr/mra with/without contrast detects 2 mm pca infundibula, can it also detect 2 to 3 mm brain arterial aneurysm if there is one in same study
It should.: If the study has enough fine (spatial) resolution to see the infundibulum then it should be able to see an aneurysm. Should is the key word. There are many reasons on MRI that something may or may not be seen and the arteriogram (angiogram) is the real final diagnostic study. ...Read more
Specific CT exam: CT or cat scan takes an image inside your body. CT of the head is used to look at your brain and skull. CT of the orbit looks at your eye socket. Contrast is occasionally used to help image and characterize the orbit or brain and get more information. CT of the chest looks at your lungs and chest, and CT of the abdomen and pelvis looks at your body below the diaphragm. ...Read more
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