Abstract
SHS investigation development is considered from the geographical and historical viewpoint. 3 stages are described. Within Stage 1 the work was carried out in the Department of the Institute of Chemical Physics in Chernogolovka where the scientific discovery had been made. At Stage 2 the interest to SHS arose in different cities and towns of the former USSR. Within Stage 3 SHS entered the international scene. Now SHS processes and products are being studied in more than 50 countries.
Abstract
The posterior segment tumors are the most important indication for ultrasound examination. Echography is essential in choroid melanoma diagnosis; there are a lot of signs in echography which permit us to make a differential diagnosis with the other most frequent intraocular tumor, metastases which appeared with similar echographic signs in ultrasound examination. In the present chapter we also explain the characteristics of other tumors, as retinoblastoma or choroid hemangioms.
Keywords:
Choroid melanoma, retinoblastoma, choroid hemangioma, retina hemangioma, osteoma, metastases, astrocytic hamartoma.
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Authors:Bentham Science Books