sodium-pertechnetate-tc-99m and Iris-Diseases

A non-invasive method of detecting intraocular mass lesions is described which uses 67gallium citrate and 99m-technetium pertechnetate. It was used in 33 cases. In 73.7% of the patients with malignant melanoma of the eye there was a significant increase in the storage of the tracer. There was no difference in the results obtained with 67gallium citrate and 99m-technetium pertechnetate. Small, flat and peripheral tumors may not be detected. In some cases old intraocular hemorrhages may also lead to false-positive results. In contrast to the 32P-test the method described can be used in cases with opaque media. The radiation dose is about one-tenth of that given with the 32P-test.

Topics: Adolescent; Adult; Aged; Choroid Neoplasms; Diagnosis, Differential; Eye Neoplasms; Female; Gallium Radioisotopes; Humans; Iris Diseases; Male; Melanoma; Middle Aged; Nevus; Radionuclide Imaging; Sarcoma; Sodium Pertechnetate Tc 99m; Technetium; Uveal Neoplasms