Search

A unicameral bone cyst is a relatively uncommon, benign bone tumor found in the metaphysis of long bones, such as the humerus and the femur, in skeletally immature persons. In the foot, these benign, fluid-filled cavities are most commonly found within the os calcis. We present a case report of a 10-year-old female with a unicameral bone cyst of the medial cuneiform.

An intraosseous lipoma is a rare benign bone lesion that proliferates from mature lipocytes. It occurs most frequently in the lower limb, particularly in the calcaneus. The talus is an unusual location for this rare lesion. A review of the literature produced only two reports with talar intraosseous lipomas under the name of intraosseous lipomatosis, which described multiple lipomas in different areas. We describe a 38-year-old male patient who had an isolated intraosseous lipoma with an osteochondral defect in the talus and was treated with autologous osteochondral graft transplantation by medial malleolar osteotomy. He could walk with full weightbearing without any assistance at the end of 12 months. Intraosseous lipoma localized in the talus may be confused radiologically with other bone lesions, especially with unicameral bone cyst, if it is associated with an osteochondral defect. Autologous osteochondral graft transplantation is a successful treatment method for talar intraosseous lipoma. (J Am Podiatr Med Assoc 101(3): 269–274, 2011)

Intraosseous ganglion, which is generally seen in metaphyseal-epiphyseal regions of long bones, is not a rare disorder. It is extremely rare in the talus, however. Differential diagnosis of a cystic talar lesion should include enchondroma, chondroblastoma, giant cell tumor, and unicameral bone cyst. This article presents a case of intraosseous ganglion of the talus in a 38-year-old woman treated with a new surgical approach and technique. The patient had mild ankle pain at the arc of motion in her right ankle that increased with activity. Radiographs and magnetic resonance images showed a cystic lesion in the medial side of the talar dome. It was treated by curettage and autocorticocancellous bone grafting through an opening in the talonavicular joint without disturbing the intact talar dome cartilage. One month after the operation, the patient had an excellent clinical outcome. This approach and technique can be used to treat other lesions of the talus that do not involve the joint space. (J Am Podiatr Med Assoc 97(5): 424–427, 2007)

The authors present a rare case of a talar unicameral bone cyst in a 9-year-old boy. This is the first such case presented in podiatric literature; the lesion has been cited infrequently in world literature. A brief review of the literature is discussed, along with the diagnostic tests, possible complications, and proper therapy for this lesion.