The Giant Grape-Like Enterogenous Cyst Extending from the Upper Cervical Canal to the Ambient Cistern: Case Report and Literature Review

Abstract

<p class="MsoNormal"> <b><span lang="EN-US">Objective and Importance:</span></b><b><span lang="EN-US"> </span></b><span lang="EN-US">The authors report the first known case of a giant multiloculated grape-like enterogenous cyst extending from the upper cervical canal to the ambient cistern. <b>Clinical Presentation/Methods:</b> We report the case of a 40-year-old male who had a prior transmastoid craniotomy at an outside facility 14 months prior with an indeterminate diagnosis, who presented to the <st1:place w:st="on"><st1:placetype w:st="on">University</st1:placetype> of <st1:placename w:st="on">New Mexico</st1:placename></st1:place> with recurrent headaches and nausea. Scans demonstrated a giant multiloculated cystic lesion in the right cerebellopontine angle that extended superiorly and inferiorly with brainstem compression and hydrocephalus. <b>Intervention/Results</b><b>: </b>We took the patient to the operating room for a retrosigmoid suboccipital craniectomy for tumor resection. Post-operatively</span><span lang="EN-US">,</span><span lang="EN-US"> the patient improved but required ventriculoperitoneal shunting for continued communicating hydrocephalus. <b>Conclusion:</b><b> </b>This is the first known case of a giant multiloculated grape-like enterogenous cyst extending simultaneously from the upper cervical canal to the ambient cistern. Enterogenous cysts should be considered on the differential diagnosis of giant grape-like lesions extending from the cervical canal to the prepontine cistern.</span><span lang="EN-US"><o:p></o:p></span> </p