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.