The reason I was so interested in undergoing a prostate-specific membrane antigen (PSMA) PET scan was that it is part one of a two-part system called theranostics. Theranostic systems include therapy and diagnostics. The original theranostic system uses radioactive iodine to treat hyperthyroidism and certain thryoid cancers.
When I read PSMA PET too fast, it turns out to be PetSmart.