Widespread Prostate Cancer Osseous Metastases: Negative on 18F-Piflufolastat PET but Positive on 18F-Fluciclovine PET.

Although most prostate cancer metastases are avid on prostate-specific membrane antigen (PSMA)–targeted PET ([1][1],[2][2]), nonavid prostate cancer metastases may occur when the malignancy does not express PSMA ([3][3]). Here, we present images of an 84-y-old man who was diagnosed with prostate