What is a blood clot? Blood clots normally form after an injury to protect your body from losing too much blood, but they can ...

Leslie Stoll was an active athlete who had never smoked. She was shocked when a chance scan spotted something unusual.

PHILADELPHIA (WPVI) -- From smoking to living in the South, many people face a higher risk of a pulmonary embolism: a blood clot in the lungs. Now with technology, new drugs, and specialized care, a ...