what does lung cancer look like on a ct scan

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Dr. Aasim Sehbai answered:

Can lung cancer be mistaken for BOOP on a ct scan?

Boop

Chest-lung
Yes Boop can mimick certain types of lung cancer ESP bronchoalveolar type.
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Dr. Andrew Turrisi answered:

Would my doctor be able to see whether my lung cancer has spread to my lymph nodes on a CT scan?

Yes, but with just a

Cancer
little more accuracy than a coin-flip based on size. CT's miss small things, and falsely label benign things cancer. Proving nodal positivity is helped with PET scans, endoscopic ultrasonography with esophagoscopy or bronchoscopy, and sometimes surgery. Why the fuss? If nodes are +, the role of surgery is limited, and surgery is no picnic, and despite trying to prove its benefit, we're not sure.
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Dr. Carlo M. Hatem answered:

Can you tell on a CT scan if it is lung cancer or something else? What reasons wouldn't a dr do a needle biopsy?

Sometimes

Cat_scan
Certain things appear on CT scan, have characteristics of an old scar. No biopsy is needed. Certain spots are too small, too far, too dangerous to reach with a needle.
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Dr. Manoj Reddy answered:

What is ct scan usual result for lung cancer?

"Nodule"

Open-uri20130118-546-oqds4r
A solid mass or nodule however it is difficult to define benign vs malignant. PET/CT may more helpful where there is suspicion. However, this may also limited in differentiating infection/ inflammation from cancer. That being said, imaging does not arrive at a pathological diagnosis. When possible, any suspicion of lung cancer requires pathological confirmation through a biopsy.
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Dr. Peter Dahlberg answered:

Is it possible to get lung cancer from a spiral CT scan?

Possible Not Likely

Gamma_rays
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.
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Dr. Carlo M. Hatem answered:

When would you do a spiral CT scan to check for lung cancer?

High risk groups

Cancer
It is recommended for two groups: 1- 55 to 74 yo with 30 pack year smoking, current smokers or quit in past 15 years. 2- 50 & older minimum 20 pack years and at least one additional risk factor.
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Dr. Loki Skylizard answered:

How often should one have a spiral ct scan to check for lung cancer?

Depends

Computed_tomography
CT-scan screening for lung cancer is appropriate for specific patients that meet certain criteria. See this link: http://www.cancer.net/publications-and-resources/what-know-ascos-guidelines/what-know-accp-and-asco-guideline-lung-cancer-screening/recommendations-lung-cancer-screening
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Are small nodes seen on lungs thru chest ct scan suggesting lung cancer or something else?

No

Smoking
95% of nodules seen on CT scan are benign. Lung cancer is unlikely to present as metastatic disease without prior symptoms, such as shortness of breath, chest pain, cough weight loss, etc. If you are a smoker, Stop. Otherwise, have the scan repeated in 3-6 months to see if the nodules change.
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Dr. Joshua Garren answered:

Can ct scan miss lung cancer ? Can an MRI find it while doing scan on thorastic spine? Both without contrast

Both

Cancer
yes. And yes. However, since mris are very hard to obtain of the lungs due to lung movement, ct scans are much more useful and diagnosing lung cancer.
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Had a chest ct scan 3 months ago. Now have chest and back pain and shortness of breathe. Can it be lung cancer?

Low chance

Computed_tomography
CT has good rate of finding lung probe,s! Seek another explanation! BUT STOP SMOKING to get yourself back on track!
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