Intraosseous ganglion. Bone imaging with Tc-99m MDP.

Intraosseous ganglia are benign cystic lesions of bone located in close relationship to the articular cartilage. The typical location and roentgenographic appearance of this lesion should permit a diagnosis of this entity which should be considered in the differential diagnosis of benign lesions of bone. Appearance of this lesion on a bone scan is shown in this case report.