Doctor insights on:
Could A Ct Scan Be Wrong When Diagnosing Lung Cancer
What bloodwork would be used in diagnosing pancoast tumor? I am waiting to have CT scan due to apex lung nodule.
Usually none: A pancoast tumor (name of radiologist who described it), is a tumor involving a specific site in the lung, but it does not give the specific type. Usually they are adenocarcinoma or squamous cell carcinoma, but you need a biopsy to prove this. Do you smoke? You are young for a lung cancer, even though you have thallasemia. Do not worry until a biopsy and ct have been performed. ...Read moreSee 1 more doctor answer
Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more
CT resolution: http://my.clevelandclinic.org/health/articles/pulmonary-nodules As above CT can note nodules as small as 1-2 mm which is quite small ( usually we worry if > 4 mm-rarely overlapping tissue can obscure-but radiologist are good at reading CT ). So do not worry . f/u /w / doc ...Read more
If I was having possible signs of lung cancer pain in chest cough a ct scan would probably detect the tumor?
It should per...: Mayo Clinic: "A CT scan can reveal small lesions in your lungs that might not be detected on an X-ray. If you have a cough and are producing sputum, looking at the sputum under the microscope can sometimes reveal the presence of lung cancer cells." Ref: http://www.mayoclinic.org/diseases-conditions/lung-cancer/basics/tests-diagnosis/con-20025531 ...Read moreSee 1 more doctor answer
It is possible: Pancreatic cancer can begin in various locations(head, body or tail of the pancreas) and can be quite small yet cause lots of symptoms. So despite CECT there is small chance of missing this tumor unless the focus of the CT is on the Pancreas and the test is planned and done with this diagnosis in mind. In fact there are special protocols for making this diagnosis.That may not have been done here. ...Read more
How accurate is a CT scan of the abdomen/pelvis in detecting pancreatic cancer? I had a normal/clean CT scan, but, i'm worried something was missed.
A solid test: The abdominal ct is actually quite good at picking up masses in the pancreas. If there's a questionable area, but not able to be declared on the ct, it can be repeated with a targeted technique called pancreatic protocol. If your ct is normal, you should be ok. Good luck. ...Read moreSee 1 more doctor answer
Will a CT scan (no contrast) detect cervical cancer if it's stage 2B or above? I realize a CT can't diagnose cervical cancer, I'm just wondering how likely it is that something would show up on a ct.
Is it possible a pelvic CT scan could miss a small tumor in rectum? Gi felt a fullness is left rectum but only tilted pelvis was seen on CT scan.
Can miss: A pelvic CT scan is designed to define structures in the abdomen pelvis such as the small bowel and colon but not to define their content within the lumen of the bowel. As such when such a luminal (phenobarbital) lesion is noted it is large and bulges within the bowel to distort the structure of that segment of bowel. Small intraluminal (phenobarbital) lesions are easily missed and require colonoscopy to be recognized. ...Read moreSee 1 more doctor answer
Binoculars: To see the moon versus hubble telescope to see the moon. The devil is in the detail. ...Read more
What can be done to reduce cancer risk after CT scan (chest). I m worried about thyroid cancer as it is related to chest CT scan.
Don't worry: Hello - the radiation exposure from one ct scan is low. You do not need to worry about thyroid cancer because of a ct. We are exposed to radiation throughout our normal daily routines and when we fly. If you'd like you can limit other exposures. Request pat-downs at security at airports instead of the scanner for example. I don't think you need to do anything, however. ...Read more
Possible Not Likely: Medical radiation is estimated to cause about 1% of cancers. Patients trested with radiation therapy have about a 0.5% chance of having a radiation related 2nd cancer. The risk from a single spiral ct is considerably less and would likely occur 10-20 years after the exposure. Bottom line is that tests like ct scans should only be ordered for good reasons. ...Read moreSee 1 more doctor answer
Maybe: Although ct scans are an excellent radiographic study, they can easily miss small bladder masses. If one should have a very large bladder mass, it will likely be seen. However, a cystoscopy is still required because the mass seen on ct scan does not neccessarily mean cancer. A tissue diagnosis with a biopsy is still required to make the definitive diagnosis. ...Read moreSee 1 more doctor answer
It is possible: The peritoneum is normally very clear. There are no spots or nodules or streaks. If there is a cancer in the picture then it depends on what kind. Some will "seed" the peritoneum and change the type of therapy that is being planned. Now is a good time to talk to your doctor ...Read more
Does a head CT scan help diagnose multiple sclerosis? If a CT scan is normal, is it still likely that multiple sclerosis can be present?
Takes time to show: "Multiple lesions over time and space" is how med students learn about MS. It evolves over time. Sometimes subtle MRI findings can suggest it, but are non-specific ("unidentified bright objects"). But it can take a long time before MS presents itself. If seriously concerned, see a neurologist. ...Read moreSee 2 more doctor answers
Would a Brain MRI without Contrast & a CT Scan with and without Contrast show a brain tumor causing symptoms? Worried that it could have been missed.
No symptomatic tumor: It is a pretty safe bet that MRI together with contrast CT can exclude a symptomatic tumor (mass) in the head. That does not mean all causes of headache or neurologic complaint are seen. Only your practitioner can give more advice to "put your mind at ease" and further direct your diagnostic journey. ...Read more
Could a CT scan without contrast (allergy) be effective detecting lthymoma or small cell lung cancer or could mri no contrast be as good as CT.
Had a CT scan it showed a 7cm lung nodule it may be benign I'm going to have another CT scan in 6 months to see if it has grown I'm a little concerned?
Lung Nodules: are very common and fortunately most of the time are benign. Many people actually have these and are unaware. There are certain characteristics of nodules such as size and appearance that may sometimes be more worrisome. Also, a history of cigarette smoking may be a cause for concern. 6 months is a standard screening period for lung nodules. ...Read more
Deoxygenated blood enters the lungs from the right side of the heart and travels to the lungs. When you inspire, oxygen flows into the lungs, transverses the capilliares and attaches to hemoglobin down a gradient. At the same time, co2 diffuses into the capilaries and is expelled with exhalation. Oxygen rich blood then flows to the left side of the heart and into the ...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
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