Fig. 2

Example of false positive of xSPECT Bone®. This SPECT/CT was performed in order to explore a focal distal thumb pain persisting after a traumatism occurred several months ago. A moderate uptake involving only the last phalange of the thumb, higher than the other phalangeal uptakes, is observed on the xB image (a), matched with the focal pain and suggesting an osteitis. However, there is no pathological uptake on the F3D image (b). The MRI performed after SPECT/CT was normal and ruled out the osteitis. A conversion disorder was diagnosed