Extrascleral Extension of Choroidal Melanoma Diagnosed by Ultrasound
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Four cases of choroidal melanoma with extrascleral extension are presented. In each case, contact B-scan ultrasonography identified extrascleral extension of choroidal melanoma as an area of relative echolucency immediately behind the globe. These ultrasonographic findings are contrasted with those demonstrated by computerized tomography. The importance of B-scan ultrasonography in the assessment of a patient with possible choroidal melanoma is discussed.
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