An occluded front is formed when a cold front overtakes a warm front. and usually form around mature low-pressure areas. The cold and warm fronts curve naturally poleward into the point of occlusion, which is also known as the triple point.
Myelogram. A myelogram is an x ray exam of the spinal cord, nerves and other tissues within the spinal cord that are highlighted by injected contrast dye.Mentioned in: Spinal Cord Tumors, Transverse Myelitis.yelogram. A myelogram is an x ray exam of the spinal cord, nerves and other tissues within the spinal cord that are highlighted by injected contrast dye. Mentioned in: Spinal Cord Tumors, Transverse Myelitis.
1 Angiogram - a dye is used to visualize all the blood vessels in the brain in order to detect certain types of tumors. 2  Myelogram - an x-ray of the spine, similar to an angiogram.  Lumbar puncture/spinal tap - a special needle is placed into the lower back, into the spinal canal. This is the area around the spinal cord.