Definition

An x-ray or computer image of the lymphatic system. A dye is injected into the body to make the lymphatic vessels and lymph nodes easier to see in the image. A lymphangiogram may be used to check for blockages or leaks in the lymphatic system and to help diagnose certain conditions, such as lymphedema or lymphoma. It may also be used with a lymph node biopsy to find out whether cancer has spread.