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Intraspinal Multiple Hereditary Exostosis with Thoracic Myelopathy: A Case Report

Osteochondromas are the most common benign bone tumor and spinal involvement is not uncommon. We report a case of osteochondroma in a 14-year-old girl with underlying multiple hereditary exostosis who presented with thoracic myelopathy symptoms and signs. Magnetic resonance imaging and computed tomography scan revealed intraspinal exostosis causing significant spinal cord compression at the thoracic vertebra. Our patient was treated surgically for exostoses and showed excellent functional and neurological outcomes. The purpose of the report is to share our experience in managing intraspinal exostosis and to emphasize the importance of spinal imaging evaluation in multiple hereditary exostosis patients.