Manifestações otoneurológicas tardia da malformação de Chiari I

Abstract

Introduction: Chiari malformation (CM) belongs to an anomaly group comprised of the structures in the cranial-cerebellarmedullary junctions. Type I (CM I) is characterized by the descent of the cerebellar tonsils and the medial portion of the lower cerebellar lobe through the cervical spinal canal. In literature, motor, sensorial and autonomous manifestations have been described. It is mostly found in women. Its prevalence is hard to determine, since there are many asymptomatic cases, hence, making the epidemiologic information scarce. Objective: The objective of this work was to report a Chiari I malformation case in a 66-year-old female patient. Case report: Authors report a Chiari I malformation case in a 66-year-old female patient, showing tinnitus, hearing loss and occipital headache symptoms. Final Comments: Chiari I's diagnostic hypothesis must be based on the patient's complaints, clinical and image examinations, and since the prevalence of this disease is difficult to determine, there can be diagnoses in rare age groups.