Lymphedema is the swelling of a body part due to abnormal accumulation of edema fluid. It's caused by a deficient or damaged lymphatic system. Physical therapy can help. Physical therapist Deana Benjamin explains what a typical PT session might be like and how PT can help people living with lymphedema. For more information about physical therapy at The Nebraska Medical Center, call 1-800-922-0000 or visit http://www.nebraskamed.com.