131 I Uptake in a Left Cerebral Infarct on Posttherapy Whole-Body Scan.

Ng, Cherie Wei Qi; Cheng, Lenith Tai Jit; Chua, Wei Ming; Tang, Charlene Yu Lin · Clin Nucl Med · 2024

case_report · Level V

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Abstract

A 75-year-old woman with papillary thyroid carcinoma who underwent 131 I radioiodine treatment was incidentally found to have an established left cerebral infarct demonstrating 131 I uptake on posttherapy whole-body scan. False-positive iodine accumulation can occur in benign processes and other malignancies, necessitating awareness among nuclear medicine physicians to avoid misdiagnosing metastatic disease. SPECT/CT can be utilized to enhance diagnostic accuracy when needed.

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