Rarely Seen, Highly Significant: Aberrant Distal Esophageal Artery in TARE Treatments.

Dilek, Ismail; Nayman, Alaaddin; Onner, Hasan · Clin Nucl Med · 2026

case_report · Level V

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Abstract

Transarterial radioembolization (TARE) is a 2-stage procedure involving a simulation phase and a treatment phase. The initial phase aims to define hepatic arterial anatomy, tumor-feeding vessels, and variations, and to perform technical simulation for the treatment phase. The treatment phase involves the administration of Yttrium-90 (Y-90)-loaded microspheres. This report presents a 60-year-old man with cholangiocarcinoma, exhibiting a rare variation of a distal esophageal artery originating from the hepatic artery, detected using contrast-enhanced Cone-Beam CT during the simulation phase. SPECT after 99m Tc MAA injection confirmed extrahepatic accumulation in the distal esophagus and gastric cardia.

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