An Unusual Presentation Of Costal Intraspinal Osteochondroma Causing Compressive Myelopathy In A Hereditary Multiple Exostosis Patient - A Case Report And Literature Review
A 22-year-old reported having a 4-month-old back pain, inability to walk, and weakness of both lower limbs.
Clinical examination revealed multiple swellings in the body, motor weakness, paraesthesia, and upper
motor neuron signs. Both magnetic resonance imaging (MRI) and computed tomography (CT) revealed an
anomalous bone mass that protruded into the spinal canal from the posterior aspect of the 9th rib through
the D9-D10 neural foramen. After routine preoperative evaluation, the lesion was removed en-mass along
with the rib with which it was attached. Osteochondroma was the histological diagnosis. After the
procedure, the patient’s symptoms subsided, and was able to return to his daily activities. From this case, we
highlight the importance of performing MRI whole spine screening for all patients with Hereditary multiple
exostosis to diagnose spinal exostosis and to start treatment early for a better post-operative outcome.