[A case of multiple cartilage exostosis of atypical localization]

A case of multiple cartilage exostosis, originating from the transverse process of the second thoracic vertebra in a 16-year old female patient has been described. Because of the symptoms of compression of the brachial plexus and progressive growth, the tumor was surgically removed. The atypical, very rare localization of the tumor created some technical difficulties in planning of the operation. Computerized tomography was helpful in this case and determined the site of origin of the tumor. After surgical treatment, all symptoms subsided.