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Connor Shea 대한핵의학회 2024 핵의학 분자영상 Vol.58 No.2
Transarterial radioembolization using yttrium-90 (90Y) therapy has become a standard modality of treatment for primary andmetastatic liver malignancies due to its high efficacy rate and relatively low risk of adverse effects compared to other formsof locoregional and systemic therapies. Non-target distribution of radio embolic beads and adjacent structure radiation arethe two most common adverse effects. However, these are rarely encountered due to thorough imaging and mapping studiesprior to 90Y therapy. We present the case of a 66-year-old male who developed a radiation-induced gastric ulcer following90Y therapy with negative pre-procedural imaging and mapping who was retrospectively found to have an accessory arteryfrom the left hepatic artery to the gastric antrum.