Includes bibliographical references and index.

1 Tumor Size.- Proposal for Reporting Size of Vestibular Schwannoma.- Proposal for Reporting on Size and Site of Residual Vestibular Schwannoma.- Classification of Vestibular Schwannoma (Acoustic Neuroma).- The Size of the Tumor in Acoustic Neuroma: Proposal for a Reporting System.- Proposal for Definition of Tumor Size.- Classification of Tumor Size from the Point of View of Functional Preservation, Based Upon Our 53 Surgical Cases with Acoustic Neuroma.- Definition of Tumor Size of Vestibular Schwannomas.- Surgical Classification and Predictive Factors in Acoustic Neuromas.- A Classification System for Vestibular Schwannomas.- Measurement of Tumor Volume in Acoustic Neurinomas.- Tumor Volume Measurements of Acoustic Neuromas with MR Imaging.- Volume Analysis and Examination of Parameters of the Tumor Diameter by Three-dimensional Reconstruction of Vestibular Schwannomas.- 2 Facial Nerve Function.- Moffat Classification of Facial Nerve Function.- Which International System Must be Chosen to Assess the Facial Function Before and After Acoustic Neuroma Treatment?.- Preservation of Facial Nerve Function After Acoustic Neuroma Surgery: Modification of the Facial Nerve Grading System.- Assessment of Facial Nerve Function Following Acoustic Neuroma Surgery: Facial Nerve Grading Systems.- 3 Pre- and Postoperative Hearing.- Patient Selection and Method of Evaluation for Hearing Preservation in Acoustic Neuroma Surgery.- Some Proposals on Reporting Systems in Acoustic Neuroma.- Outcome Reporting in Hearing Preservation Surgery: The Place of the MRI Follow-Up.- New Classification of Postoperative Hearing Results Following Acoustic Neuroma Surgery.- Sense and Nonsense of Hearing After Vestibular Schwannoma Surgery.- 4 Effect of Radiotherapy.- Long-Term Follow-up Results with Audiological Assessment After Fractionated Stereotactic Radiotherapy for Vestibular Schwannomas.- Gamma Knife Radiosurgery in Vestibular Schwannomas: Clinical and Radiological Impact on the Tumor Course.- 5 Neurological Symptoms and Other Related Items.- Functional Staging of Acoustic Neuromas.- Evaluation of Tinnitus Before and After Microsurgical Resection of Acoustic Tumors.- Indices of Facial Features Obtained from Contour Extraction with Image Processing and Its Application to Objective Estimation of Facial Palsy.- 6 Summaries of Meeting Sessions.- Session I: Reporting the Size of Vestibular Schwannomas.- Session I: Reporting System for the Size and Site of Residual Vestibular Schwannomas.- Session II: Grading Systems for Facial Nerve Function.- Session III: Grading Systems for Preoperative and Postoperative Hearing.- Session IV: Evaluation of Preoperative Symptoms and Postoperative Complications.- Session V: Evaluation of the Effect of Radiotherapy.- Session VI: Other Issues.- Appendix: Results of Questionnaires of Reporting System.- Key Word Index