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- Sofiene Bouali, Asma Bouhoula, Nidhal Maatar, Khansa Abderrahmen, Adnen Boubaker, Jalel Kallel, and Hafedh Jemel.
- Department of Neurosurgery, National Institute of Neurology, Tunis, Tunisia. Electronic address: sofienebouali@hotmail.fr.
- World Neurosurg. 2016 Aug 1; 92: 588.e1-5.
BackgroundChondrosarcoma is a rare malignant tumor of bone. This family of tumors can be primary malignant tumors or a secondary malignant transformation of an underlying benign cartilage tumor. Secondary chondrosarcoma arising from a benign solitary costal osteochondroma is extremely rare. Data show that the reported incidence of costal osteochondroma is very low and they are usually found in the anterior region at the costochondral junction. To our knowledge, however, there have been no previous reports, in English literature, describing osteochondroma malignant transformation located in the thoracic costovertebral junction.Case DescriptionWe report the case of a man with chondrosarcoma arising from the malignant degeneration of an osteochondroma at the right first thoracic costovertebral junction with neural foraminal extension and compressing the spinal cord.ConclusionsAlthough it is rare in solitary osteochondromas of rib, malignant transformation must always be considered.Copyright © 2016 Elsevier Inc. All rights reserved.
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