[Diagnostic possibilities of gamma-topography using 111In-bleomycin in malignant tumors of the orbit]. / Diagnosticheskie vozmozhnosti gamma-topografii s 111In-bleomitsinom pri zlokachestvennykh opukholiakh orbity.

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.

[Combined use of computed tomography and gamma-topography in orbital diseases]. / Sochetannoe primenenie komp'iuternoi tomografii i gamma-topografii pri zabolevaniiakh orbity.

The authors analyzed the results of combined investigation of 103 patients with primary, secondary, benign and malignant orbital tumors and pseudotumors. CT high efficacy in the above tumors was shown. The results of gamma-topography (GT) of the orbit were shown to depend on the volume of a tumor and its histological type. The combined use of CT and GT made it possible to raise the significance of preoperative diagnosis and to predict organ-sparing therapy.

[Gamma-topographic study of patients with pathological orbital processes]. / Gamma-topograficheskoe issledovanie bol'nykh s patologicheskimi protsessami v orbite.

A gamma-topographic study of the orbit was performed in 64 patients with unilateral exophthalmus using 99m Tc-pertechnetate. Some peculiarities in the RP distribution in the focus of lesion in malignant and benign neoplasms and inflammatory processes in the orbit were revealed. Correlation between RP accumulation intensity in the focus and the degree of RP vascularization and volume was shown. The method does not allow assessment of the morphological nature of a process however its use extends the diagnostic potentialities in specifying the genesis of unilateral exophthalmus and facilitates the choice of appropriate therapy.