Which of the following is an advantage of using radioactive isotope plaques for treating retinoblastoma?

The use of radioactive isotope plaques for treating retinoblastoma has a significant advantage in that it is a local treatment aimed at delivering targeted radiation to the tumor while minimizing exposure to the surrounding healthy tissues. This precision is crucial in pediatric cases, such as retinoblastoma, where preserving healthy eye structures and function is paramount.

Local treatment via radioactive plaques allows for high doses of radiation to be focused on the tumor site, thereby enhancing the effectiveness of the treatment against the cancer cells while reducing the risk of damage to normal retinal or adjacent structures. This targeted approach can lead to better outcomes in terms of preserving vision and eye integrity.

In contrast, options regarding eliminating the need for surgery, preventing metastasis, and ensuring complete tumor removal do not accurately reflect the primary benefits of this treatment modality. While surgery may still be necessary in certain cases, and the possibility of metastasis cannot be entirely prevented, the localized nature of the radioactive plaques is what primarily distinguishes this treatment approach in terms of targeting the tumor effectively.