Tabaddor K, Sachs D, Llena J F, Testaiuti M A
Department of Neurosurgery, Montefiore Medical Center, Bronx, New York, USA.
Spine (Phila Pa 1976). 1996 Sep 1;21(17):2019-22. doi: 10.1097/00007632-199609010-00019.
This case report illustrates that although it is rare, a ganglion cyst can occur intraosseously in the odontoid process.
The tissue diagnosis was established by surgical resection of the cyst membrane and evacuation of the cyst content. The patient tolerated the procedure well, and the hospital course was uneventful.
Synovial cyst of the spine is uncommon and is usually found in the lumbar region. Its occurrence in the cervical spine is rare, and no cases in the odontoid process, to the authors' knowledge, have been reported.
This patient was evaluated initially for neck pain, which led to radiographic studies depicting the lesion. It raised the suspicion of metastatic neoplastic process, although the search for primary source proved to be negative. A biopsy was indicated.
Surgical findings consisted of mucoid material field cavity lined by a thin membrane. The cyst was excised, and pathologic evaluation confirmed the diagnosis of synovial cyst.
The correct radiographic diagnosis of this patient was not made because of lack of experience with such lesions in this location. The authors hope that this case report helps raise the awareness of clinicians in considering this diagnosis when facing similar radiographic presentation.
本病例报告表明，尽管罕见，但腱鞘囊肿可发生于齿突的骨内。
通过手术切除囊肿包膜并抽出囊内容物来确立组织诊断。患者对该手术耐受性良好，住院过程顺利。
脊柱滑膜囊肿不常见，通常见于腰椎区域。其在颈椎发生罕见，据作者所知，尚无在齿突发生的病例报道。
该患者最初因颈部疼痛接受评估，影像学检查发现了病变。尽管未找到原发灶，但仍怀疑为转移性肿瘤，于是进行了活检。
手术所见为一个由薄膜衬里的充满黏液样物质的腔隙。囊肿被切除，病理评估证实为滑膜囊肿。
由于对此部位此类病变缺乏经验，该患者未得到正确的影像学诊断。作者希望本病例报告有助于提高临床医生在面对类似影像学表现时考虑这一诊断的意识。
