Related Experiment Video
Updated: Aug 14, 2026
Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
Recurrence of acoustic neuroma after incomplete resection
H K El-Kashlan1, H Zeitoun, H A Arts
1Department of Otolaryngology-Head and Neck Surgery, The University of Michigan, Ann Arbor, USA.
Objective:
To determine the risk of recurrent tumor in patients after incomplete resection of acoustic neuroma.
Study Design:
Retrospective case review.
Setting:
A tertiary referral center.
Patients:
Thirty-nine patients were identified who underwent incomplete resection of acoustic neuroma between January 1988 and December 1993, and had a minimum follow-up of 3.5 years, at a mean of 6.2 years (range 3.5-10.2 years).
Intervention:
Regular follow-up. using either computed axial tomography or magnetic resonance imaging yearly.
Main Outcome Measures:
Growth of residual tumor as determined by the increase in its greatest dimension on follow-up imaging studies and the necessity for additional treatment.
Results:
Tumor regrowth occurred in 17 patients (44%). Ten patients (26%) required additional treatment during the follow-up period.
Conclusion:
This study suggests that incomplete resection of acoustic neuroma is associated with a significant risk of recurrent tumor requiring subsequent intervention.
