Textitis as Seen on F-NaF Imaging Using an Ultra-High-Resolution Positron Emission Mammography Scanner.

is a new term used to refer to the degenerative-strain osteoarthritis that comes from excessive use of a smart phone. F-NaF is increasingly used in diagnosing skeletal pain that is not identified on radiographs. We report a case of a 26-y-old woman with left breast cancer referred for F-NaF PET/CT, who was complaining of right thumb and wrist pain. Findings were negative for bone secondaries. Dedicated hands views were acquired on a positron emission mammography scanner and showed focal uptake at the first carpometacarpal and second metacarpophalangeal joints. On the basis of the strong history, the findings were likely due to active arthritic changes caused by repetitive strain injury from excessive text messaging.