Leukemic ophthalmopathy detected by ultrasound

Contact A- and B- scan ultrasonography was performed on 40 patients with acute lymphocytic leukemia at initial diagnosis, during therapy, during remission, and in patients with recurrences. This technique simply and consistently reveals tumor in the choroid, despite the fact that leukemic involvement may cause only 1-2 mm of choroidal thickening. Leukemic involvement may be diffuse or localized, detected with or without visual symptoms, and can be monitored repeatedly. Leukemic involvement of the choroid is difficult to see ophthalmoscopically, but easy to detect with contact ultrasound.