Abstract
Rationale:Aneurysmal bone cyst (ABC) is a benign, reactive, non-neoplastic, proliferative, highly vascular osseous lesion. Because of the rarity of aggressive ABC cases, diagnostic and treatment protocols remain controversial and problematic. Treatment of ABC includes surgery, radiotherapy, selective arterial embolization (SAE), and a combination of these modalities. Successful outcomes have been reported, but the technical requirements and complications of each modality are quite different. We report the clinical, radiological, and therapeutic aspects of ABC of the thoracic spine in an adolescent who was treated by circumferential fusion, and we review the published literature.Patient concerns:An 18-year-old boy was transferred to our hospital complaining of a 2-month history of neck pain.Diagnosis:ABC of the thoracic spineInterventions:Six days after SAE, T1 corpectomy was performed via an anterior approach. We performed the operation using the posterior approach 1 week after the anterior approach. Histopathological examination confirmed the diagnosis of ABC.Outcomes:No neurologic deterioration occurred during the postoperative period. Follow-up X-rays 2 year postoperative showed good bony fusion and alignment.Lessons:Primary ABC of the spine is a benign lesion with a potential to be locally aggressive and a high rate of local recurrence. The optimal treatment of thoracic lesions is challenging due to their proximity to the spinal cord and nerve roots, and their frequent association with deformity. Surgical resection/curettage, SAE, and radiotherapy can be used alone or in combination. Complete exposure and resection is crucial to avoid the recurrence. Circumferential fusion and reconstruction of stability are also important for the treatment of thoracic ABC, especially in adolescent patient.
Highlights
Aneurysmal bone cyst (ABC) is a benign, reactive, nonneoplastic, proliferative, highly vascular osseous lesion
Histopathological examination confirmed the diagnosis of ABC
Lessons: Primary ABC of the spine is a benign lesion with a potential to be locally aggressive and a high rate of local recurrence
Summary
Aneurysmal bone cyst (ABC) is a benign, reactive, nonneoplastic, proliferative, highly vascular osseous lesion. It usually affects children and adolescents, with approximately 80% of Editor: N/A. A case report of aneurysmal bone cyst of the thoracic spine treated by serial anterior and posterior fusion. The incidence of ABC is 0.14 per 100,000 individuals It usually arises from long bones, but approximately 12% to 30% of lesions involve the spine.[1,2] The lumbar spine is the most frequent site, followed by the thoracic spine. Radiological, and therapeutic aspects of ABC of the thoracic spine in an adolescent who was treated by circumferential fusion, and we review the published literature. Patient has provided informed consent for publication of the case
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