Research the causes of related medical symptoms such as: 1  Eye. 2  Eye symptoms (5412 causes) 3  Eye disease. 4  Eye disorder. 5  Eye problem (5412 causes) 6  Eye pain (475 causes) 7  Itch (1068 causes) 8  more symptoms...Â».
How to read the Histogram. A histogram is a graphical representation of the pixels exposed in your image. The left side of the graph represents the blacks or shadows, the right side represents the highlights or bright areas and the middle section is mid-tones (middle or 18% grey).
A myelogram is an x-ray study in which special dye is injected into the spinal fluid surrounding the spinal cord. The spinal cord is not visible on a normal x-ray. Injection of this dye outlines the spinal cord, and makes it visible on the the x-ray.The injection of this dye into the spinal fluid may be done in the neck area (cisternal myelogram) or in the lower back area (lumbar myelogram).he spinal cord is not visible on a normal x-ray. Injection of this dye outlines the spinal cord, and makes it visible on the the x-ray. The injection of this dye into the spinal fluid may be done in the neck area (cisternal myelogram) or in the lower back area (lumbar myelogram).