Doctor insights on:
Cat Scans And Cancer
Up middle bk pain. Low estrogen. High CRP . Ana + 1:160 speckled. Thyroid good. All labs good. No HIV or hep . Hair loss all cat scans good.Cancer?
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
Possible: Please note that cea is just another tool we have and as such it is not perfect. Many patients have elevated cea and have no cancer and many others have clinical and x-ray evidence of active cancer and yet their cea is normal. Such tumors just don't produce cea and in those cases, the test is useless. No test is infallible. ...Read moreSee 1 more doctor answer
Other good tests: Early colon cancer is not easily visible on Ultrasound. CT scan is under trials to find out its utility. Right now the best test is Colonoscopy where it is easy to visuallise early colon cancer and precursor lesions. Ask your doctor in case you may need one done. it is recommended for all adults aged 50 years or earlier if there is a family history of colon cancer. Ask your doctor's advice. ...Read more
Computed tomography : Can often detect abnormalities consistent with ovarian cancer, but a specific diagnosis with only imaging, except in rare circumstances, is ill advised. The analogy I use is that medical imaging is like showing a stranger a picture of your family reunion. They can distinguish young vs old, boy vs girl, etc, but won't be able to point to uncle bob or cousin sue. Diagnostic pathology is needed. ...Read more
Unreliable: Specialized cts that are designed to identify colon cancers (ct colonography) are available, but require a specific bowel prep and regimen to be effective. Routine ct scans will miss many small colon cancers that colonoscopy will find--colonoscopy remains the gold-standard. ...Read moreSee 2 more doctor answers
Depends...: ...On many factors. Current standards of care do not recommend scans for patients with low risk for recurrence as they do not improve the overall chances of surviving the cancer (this was proven in at least 2 or 3 clinical studies). Patients with stage 3 cancer often do get scans, especially in the beginning, to do a complete staging. ...Read more
My brother has a pe and a mass on lung with thyroid nodules. Never smoked. He is hospital 5 days INR still 1.1. Cat scan says possiable cancer. How will we know for sure ?
What are the chances of false negative mris and cat scans? What are the odds that an MRI and a cat scan would both show no cancer when there really is cancer present? What about the opposite, where they would both should cancer when there really is none?
No test is 100%: The sensitivity of MRI and ct scans depends partly on the type of cancer and the location in the body. In general, they can find tumors that are a few millimeters in size which can be 10's of millions of cancer cells. If all scans are negative a patient may be considered in remission, but with cancer it is really only the "test of time" that ensures no microscopic cells are left. ...Read moreSee 1 more doctor answer
Sometimes: Sometimes a cat scan will be able to see a mass in the colon or rectum but it is not a good test for screening for colorectal cancer. There is a specialized type of ct scan that creates a virtual image of the inside of the colon that is sometimes used when a patient is not a good candidate for a colonoscopy. ...Read moreSee 2 more doctor answers