[Diagnostic possibilities of gamma-topography using 111In-bleomycin in malignant tumors of the orbit]

Despite the fact that 111In-bleomycin is not an absolute tumorotropic RP, the results of the investigation have shown that its use is of great diagnostic importance for the recognition of orbital tumors and for the evaluation of their dissemination. True-positive results of gamma-topography were noted in 90% of cases. In some cases 111In-bleomycin permitted differential diagnosis between certain tumor types and inflammatory orbital processes. This RP was mainly accumulated in lymphosarcoma, primary and secondary orbital melanoma.