Increased Uptake of 68 Ga-DOTA-IBA in Polymorphous Adenocarcinoma of the Parotid Gland.

Cheng, Ke; Ding, Hongyin; Guo, Xinyue; Liu, Huipan; Chen, Yue · Clin Nucl Med · 2026

case_report · Level V

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Abstract

We report the imaging findings of a 33-year-old woman with polymorphous adenocarcinoma of the parotid gland. To evaluate bone metastases, she underwent a PET/CT scan using 68 Ga-labeled DOTA-ibandronic acid ( 68 Ga-DOTA-IBA). The examination revealed increased 68 Ga-DOTA-IBA uptake in multiple bone metastases. Unexpectedly, 68 Ga-DOTA-IBA uptake was also observed in the primary parotid polymorphous adenocarcinoma (PAC).

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