Clinical and Radiological Evaluation of Acoustic Neuromas With Spontaneous Shrinkage

Inclusion Criteria: * Major subject (≥18 years old) * Subject followed in radiology for the assessment or follow-up of neuroma between January 01, 2013 and June 30, 2018 * Subject who has agreed to the use of his data for the purpose of this research * Subject presenting an untreated neuroma Exclusion Criteria: * Subject having expressed his opposition to participating in the study * Subject followed for neuroma of other cranial pairs, * Subject followed in the context of type II neurofibromatosis * Subject with a treated neuroma (radiotherapy or surgery)