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KMID : 1148920220560010063
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Nuclear Medicine and Molecular Imaging
2022 Volume.56 No. 1 p.63 ~ p.66
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68Ga-PSMA-11 uptake in tracheal mucus plug ? a potential pitfall
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Chandekar Kunal Ramesh
Sood Apurva
Kumar Rajender
Singh Harmandeep
Singh Shrawan Kumar
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Abstract
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Prostate-specific membrane antigen (PSMA) PET/CT is a well-acclaimed imaging modality for prostate cancer (PCa). However, many reports have highlighted PSMA radioligand uptake in a variety of benign tumors and lesions. We report a case of PCa in which 68 Ga-PSMA-11 uptake was noted in the tracheal lumen. However, 18F-PSMA-1007 PET/CT was done on a subsequent day, which demonstrated no abnormal radiotracer uptake or morphological lesion within the tracheal lumen. This case highlights an uncommon finding of PSMA ligand uptake in a tracheal mucus plug (non-prostatic benign uptake), which may be misinterpreted as a false-positive finding.
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KEYWORD
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Prostate-specific membrane antigen (PSMA), Prostate cancer, PET/CT, Pitfall, Mucus plug, Trachea
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