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  • Title: Adamantinoma of the spine: case report.
    Author: Dini LI, Mendonça R, Adamy CA, Saraiva GA.
    Journal: Neurosurgery; 2006 Aug; 59(2):E426; discussion E426. PubMed ID: 16883154.
    Abstract:
    OBJECTIVE: We report a patient with a cervicothoracic spinal and a mandibular adamantinoma. Adamantinoma is a rare malignant neoplasm of bone and, to our knowledge, there have been only five cases of spinal adamantinoma reported. The pathogenesis of the adamantinoma, as well as the management of this extremely rare spinal tumor, is reviewed. CLINICAL PRESENTATION: A 55-year-old man was admitted to our service with cervical pain and signs of C8 and T1 radiculopathy. On physical examination, cervical spine deformity, swelling in the left mandible region, and signs of C8 and T1 radiculopathy were observed. Neuroradiology examinations showed an osteolytic mass of the C6, C7, and T1 vertebral bodies, extending into the lateral masses and transverse processes. After surgical procedures, the patient had clinical improvement. INTERVENTION: Corpectomy of C6, C7, and T1 was performed through a cervicothoracic anterior approach. Anterior stabilization of the spine was obtained using an autologous iliac crest graft and osteosynthesis with an anterior plate. On a second procedure, posterior tumor resection and spinal stabilization were performed. After the 1-year follow-up examination, a new anterior procedure was performed because of tumor recidivity and spine instability. CONCLUSION: Adamantinoma, an extremely rare lesion, is a locally aggressive tumor with slow growth and the potential to metastasize. Although it is an extremely rare occurrence in the spine, adamantinoma should be considered on the diagnosis of tumors of the vertebrae. Neuroradiological examinations are not specific in the differentiation of this tumor from other conditions. This fact, coupled with the limited experience that most physicians in general have in dealing with this tumor, makes the diagnosis and treatment of adamantinoma challenging.
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