Intraspinal periosteal chondroma in upper thoracic spine causing cord compression and myelopathy: A case report

•Slow-growing cartilage-forming benign tumors•Commonly encountered in the dorsal spine•Enlarge and expand and cause compressive neurological symptoms, resulting in radiculopathy or more commonly myelopathy due to direct neural compression•CT scan - radiolucent, erosive lesion with stippled or scattered patterns of calcification within the tumor•Complete en bloc surgical excision - the treatment of choice for cases with local and/or neurological symptoms•Radiotherapy - patients with unresectable tumors