Tag: screening tests
False balance in an NBC news story on whole body MRI scans
Over the weekend, NBC News aired a story on whole body MRI scans. Although it did include the usual cautions about false positives and the harm they cause, the caution was diluted by the story's focus a rare case of a woman who had a brain tumor detected. Overall, it was false balance that reminded me of vaccine/autism stories 20 years ago.
Melanoma: A Pseudoepidemic of Skin Cancer Prompts New Screening Recommendations
There appeared to be an epidemic of melanoma skin cancer, but it seems to be a pseudoepidemic caused by overdiagnosis. Screening everyone with skin exams does more harm than good and can no longer be recommended.
SmartJane Test of Vaginal Health: Clever Marketing, Questionable Science
uBiome claims that its SmartJane test's proprietary technology empowers customers to assess their own vaginal health. The company is being investigated for fraudulent billing practices, and the rationale for the test makes no sense.
Kidney Cancer and Incidentalomas
Kidney cancer diagnoses are increasing but there has been no increase in mortality or rate of metastases. Kidney cancer is most often diagnosed as an incidental finding on a CT scan that was done for unrelated reasons. Treatment may not always be needed.
MyMedLab Offers Expensive, Useless, Nonstandard Lab Tests
Direct to consumer lab testing is good marketing but not good medicine. For instance, there is no reason to spend $199 to measure glyphosate levels in your blood.
How accurately do physicians estimate risk and benefit?
A new study suggests that physicians tend to overestimate the benefits of treatments, tests, and screening tests, while also underestimating harms.
The ROCA Screening Test for Ovarian Cancer: Not Ready for Prime Time
Ovarian cancer is relatively rare but deadly. The lifetime risk of ovarian cancer is 1.5% compared to 12% for breast cancer, but it is the 5th most common cause of cancer death for women. Since the ovaries are hidden deep in the pelvis and the symptoms of ovarian cancer are non-specific, the cancer is often advanced by the time it is diagnosed...
Vitamin D: To Screen or Not to Screen?
Vitamin D, the so-called sunshine vitamin, has generated a lot of attention in recent years. It has been claimed to benefit a wide variety of diseases, everything from cancer to multiple sclerosis. It is widely used along with calcium for bone health. It is added to milk and prenatal vitamins and is prescribed for breastfed babies. Some doctors are recommending everyone take...
Recent Developments and Recurring Dilemmas in Cancer Screening: Colon, Lung, Thyroid
A new stool DNA test was recently approved by the FDA for colon cancer screening. My first reaction was “Yay! I hope it’s good enough to replace all those unpleasant, expensive screening colonoscopies.” But of course, things are never that simple. I wanted to explain the new test for our readers; but before I could start writing, some other issues in cancer...