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Doctor insights on: Ct Scan Sinus

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Is orbital CT scan and CT scan sinus the same?

Is orbital CT scan and CT scan sinus the same?

Not quite: The CT of the sinuses focuses in on the sinuses (though the radiation goes through the entire skull) and generally covers the entire set of sinuses (sphenoid, maxillary, frontal, ethmoid). The orbital CT will cover the eye sockets (and those pictures are zoomed in). While the sinuses lies behind the eyes (& so they overlap), the focus & coverage of these scans are slightly different. ...Read more

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Dr. James Dukelow
3 doctors shared insights

Sinus (Definition)

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


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Ct scan of sinus report says: mild S shaped deformity of nasal septum with a large left apical osteophytes. Right sided concha Bullosa.Is this normal?

Ct scan of sinus report says: mild S shaped  deformity of nasal septum with a large left apical osteophytes. Right sided concha Bullosa.Is this normal?

Yes: Normal variation, many do have these findings, don't mean a certain disease. The doctor who ordered the study would explain more, good luck ...Read more

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Can ent dr see if u have etd by checking ears or only thru a ct scan of sinus and ears?

ETD?: Eustachian tube dysfunction? Diagnosis can often by made by interview alone as symptoms/clinical course are typical. Aseptic swelling of the middle ear compartment (seen on ear exam) is supportive. CT scan will not help. If severe, and optimized treatment strategies for allergic or non-allergic rhinitis, gastric reflux, etc fail; then ENT will sometimes place ear tubes. ...Read more

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Ct scan showed sinus fluid in my mastoids below ear. Dr recommended sudafed. Will that help?

Ct scan showed sinus fluid in my mastoids below ear. Dr recommended sudafed. Will that help?

Yes: A decongestant is often all that is needed to treat fluid within the mastoid air cells. Sometimes an antibiotic is given as well as this finding is commonly associated with inner ear infections. ...Read more

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Would a ct scan and sinus scan show labyrinthitis? Or lack of blood flow to brain?

Would a ct scan and sinus scan show labyrinthitis? Or lack of blood flow to brain?

Doubtful: A standard CT scan of the brain would have challenges in determining inner ear issues or blood flow per se. Additional modifications would be needed for the latter (along with the appropriate clinical symptoms), and other types of scans would be better for evaluation for the former (e.g. MRI, again, with the appropriate symptoms). ...Read more

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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

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Ent & CT scan showed sinus infection. Meds improved vertigo a lot but not fully. Infection was still there also. Could this be why symptoms didn't go?

Ent & CT scan showed sinus infection. Meds improved vertigo a lot but not fully. Infection was still there also. Could this be why symptoms didn't go?

Unrelated: Fluids in the sinuses is very frequently asymptomatic. Vertigo is unrelated to fluid in the sinuses. If your dizziness is not completely resolved with the medications, you probably need higher dosage of same medication on regular basis. ...Read more

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Can deviated septum with prominent spur and nasal valve collapse cause recurrent sinus infections even if CT scan said sinus were well ventilated?

Can deviated septum with prominent spur and nasal valve collapse cause recurrent sinus infections even if CT scan said sinus were well ventilated?

Deviated septum: A deviated septum is not an uncommon problem. It can lead to nasal obstruction, snoring and even sinus issues. You only need surgery if you are having symptoms.If there are symptoms like nasal obstruction, snoring or recurrent sinusitis, have your nose evaluated by a board certified otolaryngologist. ...Read more

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Had CT scan for sinus/ear.Ent said it's clear.I looked at report it said I have a protuberant cavernous carotid artery covered by bone.What that mean?

Had CT scan for sinus/ear.Ent said it's clear.I looked at report it said I have a protuberant cavernous carotid artery covered by bone.What that mean?

Large vessel: The carotid arteries travel through the cavernous sinus which is a venous drainage system covered in part by bone. I think that they are pointing out that the cavernous carotid artery is confined in bone. If the artery breaks through the bone, it is said to be dehiscent--this can lead to big nose bleeds. ...Read more

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Randmly smelling (ashtray), slight dizziness(like cross eyed), slight pressure no pain on sides head.1 ENT say ct scan fr brain.2 ENT Ct scan fr sinus?

Randmly smelling (ashtray), slight dizziness(like cross eyed), slight pressure no pain on sides head.1 ENT say ct scan fr brain.2 ENT Ct scan fr sinus?

Both: each of those studies cover a different part of the part of the brain and sinuses that are responsible for smell. The radiologist should be able to Taylor the study as needed. But sinus CT cannot visualize the entire brain to make sure nothing is abnormal there ...Read more

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What causes right eye pain when looking to the right (pain on right side of temple)? Ct scans of sinus and brain we're normal.

It could just be eye: Strain or inflammation of the muscles surrounding your eyeball. Consider seeing an ophthalmologist. Try taking otc nsaids. If there are no other symptoms such as visual blurring, headache, dizziness, fever etc, i won't worry much. (try to look at the left. It may help. Or are u watching too much tv or doing facebook? Joke!) take care ! ...Read more

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Ct scan results: frontal sinus is aplastic. Can you tell me what this means?

Ct scan results: frontal sinus is aplastic. Can you tell me what this means?

Normal variant : When your sinuses form they are typically filled with air and are lined with mucosa. Frontal sinuses, as well as, others may not form or they form incompletely. Aplastic is a term that describes an underdeveloped structure. ...Read more

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Does a CT scan of the sinus show sinus infection or just structural abnormalities?

Does a CT scan of the sinus show sinus infection or just structural abnormalities?

Both and more.: Ct scans are great for showing anatomy and disease states. Infection, trauma, tumors, and anatomic variants of normal can be seen. The sinuses have normal drainage pathways that can be seen as open or obstructed by infections, tumors, and deviations from normal anatomic form. Such deviations can lead to recurring/chronic sinusitis that may require surgical cure. ...Read more

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My doc ordered a ct scan of head sinus. Is it a scan of just the sinuses or does it include the head as well. I suffer from really bad headaches.

Front part of brain: Sinus examination with CT includes paranasal sinuses and very small portion of brain. Your physician is seeing if sinus disease is causing headaches. Many headaches can be caused by sinusitis. ...Read more

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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?

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

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Sharp pain back of head.Sinus since July. Head Ct scan normal showed sinus.Doc said pain is from sinus. But is it?Pain usually face, not top/back head

Sharp pain back of head.Sinus since July. Head Ct scan normal showed sinus.Doc said pain is from sinus. But is it?Pain usually face, not top/back head

Depends : It depends on which sinus. For example if the sphenoid sinus is involved you may feel it in the center of your head. Ethmoid sinus may give you eye pain. Also if they are infected, the lymph node drainage is variable and back of head/ neck may hurt. So it depends ...Read more

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I got infraorbital neuralgia, Brain MRI=good, CT scan = chronic maxillary sinus issue on side of the neuralgia. Could there be a relation?

I got infraorbital neuralgia, Brain MRI=good,  CT scan = chronic maxillary sinus issue on side of the neuralgia. Could there be a relation?

Yes: Yes. Strong chance of relationship. See ENT doc with special expertise in sinus problems for management of chronic sinusitis. Resolve chronic sinusitis and see what happens to infraorbital pain. "Burning" pain is difficult to treat. If no resolution, see orofacial-TMJ doc. ...Read more

Dr. Sewa Legha
1 doctor shared a insight

Computed Tomography (Definition)

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


Dr. Michael Gabor
1,836 doctors shared insights

Ct Scan (Definition)

Ct scan uses data from a beam of xrays and reconstructs a cross sectional image of your body. It is a high dose of xrays and used only when the benefits outweigh the risk. Cancer risk is 1 in 500 in children. Also using iodinated contrast might cause transient renal failure in about 5% of patients. (contrast induced nepropathy) most do not explain this to the patient as ...Read more