A<unk>  is a medical test, whereby pictures of the lymphatic system taken with X-rays after a special dye is injected to outline the lymph nodes and blood vessels.  It is performed in a hospital radiology department or in the health care provider's office by an X-ray technician.
This test is not used as often because of the adoption of CT scan and the PET scan technologies.
Lymphangiogram
Venography
Thermography 
Angiogram
Magnetic resonance angiography
Computed tomography angiography
Peripheral arterial disease CT
Varicose veins ultrasound