Remarkable reduction or disappearance of retroodontoid pseudotumors after occipitocervical fusion - Report of three cases
Remarkable reduction or disappearance of retroodontoid pseudotumors after occipitocervical fusion - Report of three cases
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DOI：
10.3171/spi.2006.5.2.156
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发表时间：
2006-08-01
影响因子：
2.8
通讯作者：
Yamamoto, Tetsuji
中科院分区：
文献类型：
--
作者：
Yamaguchi, Ikuko;Shibuya, Sei;Yamamoto, Tetsuji
在临床上，与类风湿关节炎或血液透析无关的齿状后或牙周假肿瘤是罕见的。作者报告了三例手术治疗的齿状后假肿瘤。所有患者均表现为上颈脊髓脊髓病。x线平片显示3例患者中2例寰枢椎不稳。磁共振图像清楚地显示了所有患者的肿块病变引起的脊髓压迫。在两例患者中，肿块病变不局限于齿状突后区域，并不断扩大到颅底。寰椎后路椎板切除术及枕颈融合术。术后假性肿瘤2例消失，1例明显缩小，神经系统症状改善。齿状后假性肿瘤是一种可以通过后路减压和融合改善症状的病变，即使不直接切除肿瘤。
Retroodontoid or periodontoid pseudotumor unassociated with rheumatoid arthritis or hemodialysis is clinically rare The authors report three cases of retroodontoid pseudotumor that they treated surgically. All patients exhibited myelopathy of the upper cervical spinal cord. Plain radiography depicted atlantoaxial instability in two of the three patients. Spinal cord compression caused by a mass lesion in all patients was clearly demonstrated on magnetic resonance images. In two patients, the mass lesion was not limited to the retroodontoid region and expanded continuously to the cranial base. Posterior laminectomy of the atlas and occipitocervical fusion were performed. After surgery, the pseudotumor disappeared in two cases and was clearly reduced in one case, and neurological symptoms also improved. Retroodontoid pseudotumor is a lesion for which symptomatic improvement can be expected with posterior decompression and fusion, even without direct tumor excision.