Intraosseous ganglion of the ankle

A case of ganglionic cystic defect in bone is presented with a review of the literature. This lesion is usually benign and found in close association with the articular cartilage of the distal metaphysis of long bones. Characteristic radiographic appearance of a ganglionic cyst is most often found eccentrically located at the end of a long bone, usually in the metaphyseal region of the tibia in young and middle aged adults. In addition to standard radiographs, other diagnostic radiographic studies such as CT (computerized tomographic) scanning or radionuclide bone imaging may be required to ascertain the extent of the lesion. Histopathologic information is derived from biopsy. Although its pathogenesis still remains unknown, surgical intervention is the most effective treatment. The purpose of this paper is to present a case of podiatric significance that grossly and histologically resembled a soft tissue ganglion, but within bone.