Türk Nöroşirürji Dergisi 2021 , Vol 31 , Num 1
Chiari Malformations
1Marmara Üniversitesi, Beyin ve Sinir Cerrahisi Anabilim Dalı, İstanbul, Türkiye
2Toronto Üniversitesi, Beyin ve Sinir Cerrahisi Anabilim Dalı, Toronto, Kanada
The Chiari malformations (CMs) are a spectrum of hindbrain abnormalities ranging from simple tonsillar herniation through the foramen magnum to complete cerebellar agenesis. Even if all the CM types are associated with the hindbrain structures, their etiology and pathophysiology are different from each other. The goal of the treatment in symptomatic patients is to restore the normal cerebrospinal fluid (CSF) dynamics across the craniovertebral junction by decompressing the posterior fossa. The clinical presentation, imaging findings, and surgical techniques of decompression vary widely for each type of CM. In this study, we aim to review the terminology of CM, as well as the pathophysiology, clinical presentations, diagnostic methods, treatment strategies, and complications for each CM type. Anahtar Kelimeler : Chiari malformations, Posterior fossa decompression, Tonsillar herniation