PSMA Uptake Due to Recent Intra-articular Injection.
We report a case involving a 66-year-old man with prostate adenocarcinoma, referred for initial staging using 99mTc-PSMA and 99mTc-MDP bone scan.
APA
Ahmadi M, Saber Tanha A, et al. (2025). PSMA Uptake Due to Recent Intra-articular Injection.. Clinical nuclear medicine. https://doi.org/10.1097/RLU.0000000000006205
MLA
Ahmadi M, et al.. "PSMA Uptake Due to Recent Intra-articular Injection.." Clinical nuclear medicine, 2025.
PMID
41289002
Abstract
We report a case involving a 66-year-old man with prostate adenocarcinoma, referred for initial staging using 99mTc-PSMA and 99mTc-MDP bone scan. The whole body PSMA scan revealed foci of increased tracer uptake in the right knee and the surrounding periarticular space above the knee. Subsequent 99mTc-PSMA SPECT/CT imaging demonstrated evidence of arthritis characterized by effusion in the periarticular region, connected to the joint in the right knee. Notably, the patient had received an intra-articular corticosteroid injection just 2 days before the scan. This case highlights the necessity of recognizing atypical 99mTc-PSMA uptake patterns to differentiate from metastasis, thereby enhancing diagnostic accuracy.
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