Benign Traumatic Rib Fracture: A Potential Pitfall on 68Ga-Prostate-Specific Membrane Antigen PET/CT for Prostate Cancer.

ABSTRACT

Two, respectively, 72- and 76-year-old men with recently diagnosed high-risk prostate cancer were referred for primary staging with Ga-prostate-specific membrane antigen (PSMA) PET/CT. In both patients, the PET scans revealed increased Ga-PSMA uptake in, respectively, 3 and 4 rib fractures, characteristically placed as "pearls on a string." These cases illustrate important pitfalls when reporting PSMA PET.