Korean J Nucl Med.
2000 Feb;34(1):94-98.
Sialolithiasis Mimicking Metastatic Thyroid Cancer
Abstract
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We report a false positive case of I-131 scan due to a sialolithiasis in right submandibular
gland. I-131 images showed not only remnant thyroid tissues and functional metastases in the
anterior neck but also a hot uptake near right submandibular gland. We confirmed the
sialolithiasis by radiologic studies. Sialolithiasis should be regarded as a false positive
cause when I-131 scan shows a hot spot near salivary bed.