Doctor insights on:
Sinus Ct Scan Radiation
Mini sinus Ct scan 3/17 tooth mini Ct scan 1 side 6/17 & again one week later is it too much radiation if I now have a regular Ct scan of face/neck?
Shouldn't be an issue: Overall this shouldn't be an issue exposure wise and these scans are to aid in diagnosis and unfortunately nothing can provide the same info that doesn't have some exposure to it. ...Read more
In anatomy, a sinus is a cavity within a bone or other tissue. Most commonly found in the bones of the face and connecting with the nasal cavities. Sinus (anatomy), description of the general term paranasal sinuses, air cavities in the cranial bones, especially those near the nose, including: the maxillary sinuses, also called the maxillary antra and the largest of the ...Read more
Had a sinus CT scan for a deviated septum/chronic sinusitis. Now I'm worried about cancer from the radiation. Is it unlikely?
Very unlikely: While many studies have recently been published about radiation exposure & risk for cancer, the main concern is from repeated x-rays, not the occasional one. The media has also pointed out that it's important to go to reputable facilities that check their equipment regularly to insure appropriate dose is used. But in general, your risk for cancer from sinus ct scan is very unlikely. ...Read more
Sinus dx nl ct: It is hard to have sinus disease with a normal cat scan. You may have gotten a reading of benign findings. Basically this means it is negative for any masses or lesions. When you have a negative cr scan and nasal issues it is time to look elsewhere for abnormalities. I would check your allergies see an ENT or allergist and get worked up for this. Good luck and feel better! ...Read more
It means: That there are no significant abnormalities, the scan is essentially normal. ...Read more
Not usually: If your ENT needs it they will order it. ...Read more
What to do if I had a sinus CT scan. I have received the report. Can anyone help me understand the findings?
CT: You can speak with your doctor about the results. If you have a specific question, you can post it on HealthTap. Or, you can send a message to a HealthTap doc for more detail. ...Read more
Yes,: A sinus CT should cover the sphenoid bone. ...Read more
Normal expected air, which appears black on ct, surrounded by mucosal thickening, which appears grey on ct. Bone is white or a lighter grey.
Without the images, it is impossible to guarantee the assumptions above, but mucosal thickening is very common. ...Read more
Deviated septum: CT scans take cuts through part of the septum so it is possible that a septal deviation could be missed. Have your nose evaluated by a board certified otolaryngologist. ...Read more
Sinus CT: CT scans are directed to the specific anatomy that your doctor is interested in. A sinus CT is focused and optimized to examine your nasal and sinus cavities. Although surrounding structures are viewed at times, including other parts of your head, the radiologist will adjust the window settings for the specific tissue of interest. Also some tissues image better with contrast. Hope this helps. ...Read more
What to do if I was just wondering. I'd had a sinus CT scan done a few months back and was just wondering how much of a person's brain is included in these scans?
About 1/4 brain: Study is collimated to mostly include sinuses and facial bones, there anterior part of brain ...Read more
Quite a Lot: MRI is more helpful for soft tissue problems of blood vessels, inflammation, demyelination of brain tissue, and fluid collections. It seems you are undergoing a lot of tests, but without a clear diagnosis you can not be certain of the correct treatment. Ask your physician to explain the different treatments these tests will suggest. Tests are not useful, solely, because you have symptoms. ...Read more
Can a person have a clear sinus CT scan but still have sinus infection. I have had sinus infection symptoms for 7 months and clear sinus CT scan.
Not too likely: Sometimes things are missed. Problems with the osteomeatal complex are sometimes overlooked on ct. Best to have an ENT have a look. ...Read more
Within a matter of 4 years I had 2 brain CT scans and 1 sinus CT scan, I am worried about developing cancer. Should I be alarmed with having 3 in 4 yr?
See below: Radiation exposure to head can lead to cancer and it is dose related. Children who have received high dose radiation therapy for head and neck cancer can develop an unrelated form of cancer later on in life. The dosage from ct scan is much lower and the risk is very small. There is no need to be alarmed, do try to avoid more ct scans unless it is absolutely necessary. Mri scan has no radiation. ...Read more
I have a lump on my left cheek. Just below top of jaw. Dr is doing a sinus ct scan w/o contrast. Will this show if it's a lymphnode in my cheek?
No lymph node in you: Need more history. Now your testing will help to identify. Wit to see what your doctor says ...Read more
I have intense head pressure and on/off brief ringing in my right ear. My sinus CT scan was clear. What could be the cause?
How long?: Not enough information If it continues seek medical help from a neurologist ...Read more
Got a mucus retention cyst in sinus CT scan blocking sinus partially. What are the treatments to remove it or dissolve it? Suffering from post nasal dip
Not necessary to: Remove a mucous retention cyst is not necessarily the cause of your sinus problems. I take ct scans all day and we see a lot of mucous retention cysts with little correlation to symptoms. If you are going to have it out just know that your symptoms will probably not improve. Many university radiologists that read scans will advise against treatment because of the high reoccurrence rate ...Read more
Barium xray/sinus CT scan all neg. Have constant what feels like post nasal drip. I've tried everything to get rid of it. What is it? Had it for 5mos
Mild sore throat, with red spots. Sinus CT scan clear, have been on allergy medications from 7 months. Throat pains when I speak more. Please help?
See ENT: If you have throat pain for months and have not responded to allergy medications, you need to see an ENT to check out your throat. ...Read more
When I was 20 I had a chest CT with contrast, at 25 a sinus CT &26 head ct. Iliving in fear of getting leukemia from the radiation?
No such a thing: Do not worry. Population studies do show a risk from ionizing radiation but personal risk is very very small. ...Read more
What does mild thickening of the mucosal lining in sinuses mean? Dr said it was common finding on sinus CT scans.
Common finding.: Minimal (millimeter or two) thickening of mucosal lining of paranasal sinus. Usually related to allergies and not sinus infection. More worrisome findings are fluid representing infection and large cysts or mucoceles. ...Read more
How common is an endoscopy exam of the sinus and nasal passages? Are sinus CT scans better? When would you use one or the other?
Endoscopy: Endoscopy of the nose and sinuses occurs daily in an ent's office. Sinus ct scans are not necessarily better, but the complement the nasal endoscopy and provide information about the inside if the sinuses, which usually can't be seen with endoscopy, unless surgery has been done in the sinuses. Ct is usually a preop test for most ents. ...Read more
Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! The image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more