Diagnosis and treatment of cystic acoustic neuroma / 中华外科杂志

<p><b>OBJECTIVE</b>To study the clinical features and treatment of cystic acoustic neuroma.</p><p><b>METHODS</b>Twenty-two patients with cystic acoustic neuromas were diagnosed by CT and MRI preoperatively, and the tumors were resected by retrosigmoid approach, and verified by pathological studies.</p><p><b>RESULTS</b>Of the 22 patients, 18 had tumors totally resected (postoperative house Brackman facial nerve grading: grade II in 4 patients, III in 7, IV in 3, V in 2, VI in 2) and 4 had tumors subtotally resected.</p><p><b>CONCLUSION</b>Because of its specific clinical features and poor operative results, cystic acoustic neuroma should be regarded as a specific subtype.</p>