Abstract
A 28-year-old woman noticed a precordial swelling in January 1992, but ignosed it until precordial pain developed in January of the following year. She then presented to the Department of Orthopedics, Showa University. Results of plain radiography, computed tomography, and magnetic resonance imaging sussested a primary sternal osteoncus. Enchondroma was diagnosed at biopsy, and surgery was performed. Fenestration and curettage, primarily of the protruding part of the sternum, was performed, followed by grafting with a mixture of autologous bone and hydroxyapatite. Pathologic examination of the resected specimen confirmed the diagnosis of enchondroma. The postoperative course was excellent. Histopathologically, the differential diagnosis of enchondroma and well differentiated chondrosarcoma is extremely difficult. We describe one case of enchondroma arising in the sternum and review the relevant literature.
