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  • Title: Neurenteric cyst of the craniovertebral junction treated to reduce recurrence using different strategies: Two case reports and a literature review.
    Author: Park SJ, Hong JH, Han MS, Moon BJ, Koo JY, Lee JK.
    Journal: Medicine (Baltimore); 2023 Jun 09; 102(23):e33844. PubMed ID: 37335667.
    Abstract:
    RATIONALE: Neurenteric cysts are rare benign lesions that are usually located in the lower cervical and upper thoracic spine and extremely rare in the craniovertebral junction. It is generally challenging to completely remove the neurenteric cysts of the craniovertebral junction. We report the cases of 2 patients with neurenteric cyst in the ventral craniovertebral junction managed using different treatment strategies. PATIENT CONCERNS: The first patient was a 64-year-old man. He man was admitted with headache, posterior neck pain, and a tingling sensation in both the forearms. The second patient was a 53-year-old woman. She was admitted with tingling sensations and numbness in both the hands and feet. DIAGNOSES: Cervical spine magnetic resonance imaging showed 2 intradural extramedullary cystic lesions in case 1 and a C2 to C3 intradural extramedullary cystic mass in case 2. INTERVENTIONS AND OUTCOMES: The patient of the case 1 underwent a left C1 to C2 hemi-laminectomy and the cysts were completely removed. Eleven years after the surgery, there was no recurrence. In case 2, we performed a left C2 to C3 hemi-laminectomy and removed only a part of the outer membrane to enable sufficient communication with the surrounding normal subarachnoid space. After removing the cyst wall, the patient underwent C1 to 2 trans articular screw fixation to prevent cervical instability. Ten years after surgery, there was no recurrence of the cyst or new lesions. LESSONS: Clinicians should consider neurenteric cyst in the differential diagnosis of arachnoid cyst or epidermoid cyst. If performing a complete surgical removal is difficult, partial surgical removal, using a cysto-subarachnoid shunt and stabilization, such as screw fixation, could be an alternative treatment option to reduce the risk of mortality and morbidity.
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