Button batteries are flat, coin-sized discs that can easily become lodged in the esophagus when they are swallowed.
When evaluating lower gastrointestinal bleeding, it is important to rule out the most dangerous potential causes - such as colorectal cancer.
Magee DeFelice, M.D., Chief of Allergy and Immunology at Nemours/Alfred I. duPont Hospital for Children, wrote this for the Healthy Kids blog at philly.com/healthykids.
The dentist and the ex-cop first met about five years ago at a pain management seminar at Tufts University.
"He asked me what I was doing there," recalls Carlos Aquino, who spent 23 years on the Philadelphia police force before retiring...