Thymus, a small and relatively unknown organ, may play a bigger role in the immune system of adults than was previously believed. With age, the glandular tissue in the thymus is replaced by fat, but, ...

A older patient is guided into a CT scanner — an essential diagnostic tool whose life-saving power is now being weighed against growing concerns about long-term radiation exposure. Computed tomography ...

NORFOLK, Va. — November is Lung Cancer Awareness Month, and lung cancer remains the leading cause of cancer-related deaths in the United States. The disease often goes undetected until it reaches an ...

Rebecca Smith-Bindman, a professor at the University of California-San Francisco medical school, has spent well over a decade researching the disquieting risk that one of modern medicine’s most ...

To reduce unnecessary CT use, some hospitals have begun using blood-based biomarkers to guide triage in mild head trauma. Biomarkers such as glial fibrillary acidic protein (GFAP) and ubiquitin ...