b'SECTION 1: WHAT IS LYMPHEDEMA (LE)?SECTION 2: WHAT CAUSES LYMPHEDEMA?The president of the B&L Line is very upset and demands answers from the trains conductor. Why did the green train come off the track?! The conductor explains that there aretwo possible causes.The arterial system is releasing cells and proteins There are two causes of lymphedema. constantly as it courses down the arm.18 UNDERSTANDING LYMPHEDEMA: KEEPING THE TRAIN ON TRACK SECTION 2: WHAT CAUSES LYMPHEDEMA? 19'