Abstract
Prostate-specific membrane antigen (PSMA) is expressed universally in juvenile nasopharyngeal angiofibroma (JNA). As contrast enhancement of postoperative scar is common with contrast-enhanced MRI (CEMRI), diagnosis of residual/recurrent JNA remains perplexing. Prostate-specific membrane antigen PET targets only the neovasculature and may aid in resolving this dilemma. Positive contrast enhancement on CEMRI was noted in a patient after 30 years of initial surgery, simulating recurrence. However, there was no abnormal uptake in PSMA scan, which was confirmed by biopsy as postoperative fibrosis. Ga-PSMA PET/MRI fusion may be an easy and novel technique to aid in differentiating residual/recurrent disease from surgical site reparative tissue.
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