Malignant Melanoma (Cont’d)
The ultrasonogram of the right eye shows an elevated convex mass, characteristic of malignant melanoma. Note the overlying retinal detachment with fluid separating the retina from the anterior tumor surface. The cross-vector A-mode ultrasonogram displays separate peaks for the retina and the anterior tumor surface. Because of the analog presentation of the ultrasonogam in this particular instrument, the A-mode peaks are slightly displaced to the left of the corresponding B-mode structures. (Courtesy Blophysic Medical, Inc.).