IMMUNOLOGY

Detailed explanation-1: -Lymphangiography uses dye with imaging technology to create lymphangiograms, pictures of the lymphatic vessels and lymph nodes. The test is also called lymphography.

Detailed explanation-2: -Iodized oils are usually used as contrast media for lymphography and can cause iodism. Reactions can also occur to the dye “patent blue violet”, which is injected subcutaneously before lymphography to enable the lymphatics to be visualized; it colors the skin and urine blue.

Detailed explanation-3: -A lymphangiogram is used with lymph node biopsy to determine the possible spread of cancer and the effectiveness of cancer therapy. Contrast dye and x-rays are used to help determine the cause of swelling in an arm or leg and check for diseases that may be caused by parasites.

Detailed explanation-4: -Invasive lymphangiography is considered the gold standard for diagnostic imaging of the central and peripheral lymphatic systems. Invasive lymphangiography provides high spatial resolution anatomic imaging and allows for hemodynamic flow evaluation along the lymphatic system.