Doctor insights on:
What Blood Tests Can Detect Colon Cancer
Usually an adept: Hand examining the scrotum is the beginning, but you are likely referring to Alpha -feto-protein (embryonal and yolk sac tumors) and HCG (human chorionic gonadotropin) choriocarcinoma, germinoma, and teratoma. Seminoma may not produce either, and never afp. These occur in all ages, but especially young men teens and twenties. ...Read moreSee 2 more doctor answers
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
Can xrays and blood tests show or detect cancer? Can xrays and blood tests show cancer? What are the best ways to detect cancer?
It : It depends what kind of cancer. There are some types of cancer that can be detected by special blood tests, although many of these tests can be abnormal in other conditions too and they are mostly used to check up on people who already are diagnosed cancer in whom the doctor knows that the blood test is abnormal because of the cancer. Mammography is now the only proven x-ray study for screening people without cancer in order to find a new cancer (breast) early. However, there are studies being done to see if ct scans can help diagnose more early lung cancers in people at high-risk like heavy smokers. Other than mammography, most imaging studies are used only when someone has some sort of suspicious symptom or other finding in order to determine if a tumor is the cause of the problem. They are also used for "staging" after a cancer has been diagnosed which means to look to see where the cancer might have spread. Finally, imaging tests might be used to follow how well a treatment is working or to look for a recurrence after treatment has stopped. The problem with imaging studies is that most of them can only find a tumor that is a few millimeters in size. This is already hundreds of millions of cancer cells. You need to talk to your doctor about cancer screening. She or he can discuss the appropriate screening tests for you which depend on your age, gender, environmental exposures, and family history. These may include things like a psa test and rectal exam for prostate cancer, mammography or other images for breast cancer, a blood test and pelvic exam for uterine cancer, a pap smear for cervical cancer, a stool test and/or colonoscopy for colon cancer, or others. ...Read more
No: A fecal occult test tests for blood in the stool. Colon cancer can be a cause but so can colon polyps, hemorrhoids, stomach ulcer and many other causes. Anyone with a positive fobt test should have further work up done to evaluate where the blood is coming from. ...Read moreSee 1 more doctor answer
Backward: There is no screening test for ovca. However, if you have ovarian cancer, a ca-125 level may or may not be elevated. If it is, it may be one thing monitired for response. Getting ca-125, an expensive blood test of unproven value before knowing you have the cancer is inded backward, costly, non-specific and can led to unnecessary worry. ...Read moreSee 1 more doctor answer
Variety: Depends on risk factors. The more risk factors you have the more serious the investigation. Baseline CXR, possibly CAT scan, sputum samples, up to bronchoscopy with washings and possible biopsy or guided needle biopsy for findings. Currently even starting genetic analysis of tumors to help predict response to chemo/radiation. If really worried start with Pulmonologist ...Read more
Only a few cancers: Unfortunately, there are very few cancers that can be detected through blood tests. These include prostate cancer and leukemia. Some other cancers have tumor marker tests, such as breast cancer, ovarian cancer, colon cancer, pancreatic cancer, and others but these are to monitor, not detect the cancer. ...Read moreSee 1 more doctor answer
Yes: it's quite possible. I had a patient with abdominal pain who incidentally had a CT done, indicating a pancreatic mass, and follow up MRI confirmed the mass, prompting a further assessment with an endoscopic ultrasound and fine needle aspiration. So it's possible. But at 19, you're less likely to have pancreatic cancer. ...Read more
Guaiacs-: Are actually tests of thin films of stool to discern if there is hidden blood beneath visiblity, so-called "occult blood". It is a great screen, that if positive leads to a closer, less comfortable, more expensive test: colonoscopy. After 50, you get one per decade without occult blood in stool! ...Read moreSee 2 more doctor answers
FOBT is screen: Fobt is designed to test for blood in stool. Blood in stool may be due to any bleeding in the GI tract from the gums to the anus; and there are false positives also. If fobt is positive, colonoscopy is generally recommended to look of colon cancer. Fobt per se is not a diagnostic test for cancer, just blood in stool. ...Read moreSee 3 more doctor answers
Not gold standard: It's a pretty good screen but if you're having symptoms, you need to get 'scoped. ...Read more
Some can help..: The diagnosis of testicular cancer requires a tissue biopsy to determine that cancer is present and the specific type. There are some tumor markers for testicular cancer that can be detected in the blood to help determine response to chemotherapy and disease activity. These are not present in all patients with testicular cancer and are not used for the actual diagnosis of the cancer. ...Read moreSee 2 more doctor answers
No.: Bone cancers are typically diagnosed by biopsy after noticing an abnormality on x-ray or mri. There typically have no abnormalities of blood work. Leukemia is a bone marrow disorder. This is not a bone cancer, but can be confused, as the abnormal marrow is inside the bone. Leuekemias often have abnormal blood work. ...Read moreSee 1 more doctor answer
Several tests done.: Pain and bloating can be signs of ovarian cancer, but they can be just from a painful period. Ovarian cancer would be more likely in older women, like 40+ years, and most likely in women 70+ years. Other tests, like pelvic exam, ca-125, and transvaginal ultrasound would be needed. The ultimate way to know is surgery to see if it is in fact, a tumor of something else. ...Read more
MMG/CBE/BSE: The basis of breast cancer screening is trifold with breast self exam (bse), clinical breast exam (cbe), and annual screening mammography (mmg) at age 40 (still the standard recommendation). If any find a question, then add diagnostic imaging including special mmg views and ultrasound. Screening MRI is for high risk pts (see acs criteria). Final DX should usually be by image guided needle bx. ...Read moreSee 2 more doctor answers
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