Significant 68Ga-PSMA-11 activity is commonly observed in the lacrimal and salivary glands on PSMA PET/CT. An 80-year-old man after radical prostatectomy was evaluated with 68Ga-PSMA-11 PET/CT. There was no obvious PSMA uptake in the bilateral lacrimal, parotid, and submandibular glands. Subsequently, based on laboratory examination results and 99mTcO4 salivary gland scintigraphy, this patient was diagnosed with Sjogren syndrome, which accounted for the absence of uptake by the glands. This case showed the potential of 68Ga-PSMA-11 PET/CT in the evaluation of the lacrimal glands and major salivary glands.
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