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Aggressive Vertebral Body Hemangioma Causing Compressive Myelopathy - Two Case Reports.

ABSTRACT: Hemangiomas are benign tumors characterized by proliferation of blood vessels. A few hemangiomas are aggressive, characterized by bone expansion and extraosseous extension. These benign tumors may be mistaken for metatasis resulting in unnecessary biopsies, which have a high risk of hemorrhage. These hemangiomas can spread not just into the paraspinal soft tissues but also into the epidural region of the spinal canal causing cord compression and paraparesis. These clinical symptoms can be relieved by surgical decompression of the posterior elements, embolization or radiotherapy.In this case report the authors describe the imaging features of two aggressive vertebral body hemangiomas in two patients with back pain. One patient had isolated motor deficit while the other patient had both sensory and motor deficit. On imaging this benign tumor was seen involving both the vertebral body and its posterior elements with paraspinal and epidural extension causing compressive myelopathy.Thus, these case reports help identify the characteristic imaging features of an aggressive vertebral body hemangioma, preventing unnecessary and often risky biopsy. The clinical symptoms of the patient can be relieved by surgical decompression of the posterior elements or by radiotherapy. Use of onyx for intraarterial embolization is now believed to be the safest and most efficacious method for treatment of aggressive vertebral body hemangiomas. However, in the absence of definite guidelines, a multicentric study is warranted to prove that embolization with onyx is better than surgery with post-operative radiotherapy.

SUBMITTER: Pinto DS

PROVIDER: S-EPMC5553841 | biostudies-other | 2017 Mar-Apr

REPOSITORIES: biostudies-other

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