Frontal Neurenteric Cysts Combined with Anterior Skull Base Osteoma and Spontaneous Intracranial Pneumatosis：A Case Report and Literature Review

Background: Neurenteric cysts (NCs) are rarely that arise from incomplete dissolution of the neurenteric canal,most are found in the spinal canal, intracranial neurenteric cysts occur rarely,no cases of neurenteric cysts combined with anterior skull base osteoma have been reported. Case presentation: A 23-year-old man presented with intermittent headache and vomiting for more than 20 days after running.The computed tomography(CT) and magnetic resonance imaging(MRI) showed a cystic mass and bone tumor in the left frontal lobe, accompanied by intracranial pneumatosis in the left ventricle and left frontal lobe,then he underwent a bicoronal scalp incision and frontal craniotomy to perform resection of the lesion. Postoperative cranial MRI showed no residual tumor. The patient recovered well after surgery, without ambulation or neurological complications. Conclusions: : Based on existing literature and this case, we suggest that surgical resection of intracranial neurenteric cysts should be the first choice, and the accompanying intracranial osteoma is removed at the same time. The treatment of choice remains complete surgical excision, and prognosis is good.