Bone scintigraphy in painful os peroneum syndrome.

Lateral foot pain may be caused by various entities including the painful os peroneum syndrome. A case of a 68-year-old man is presented, who experienced a trauma with distortion of the right foot. Nine months later, he still had pain in the lateral part of the right foot. Bone scintigraphy showed uptake in the area where an os peroneum was located and thus confirmed the clinical assumption of painful os peroneum syndrome. Familiarity with the clinical and imaging findings can prevent undiagnosed lateral foot pain.