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Journals / Anatomy / 2026 / Volume: 10 Issue: 1

PREVALENCE OF CHIARI TYPE I MALFORMATION ON CERVICAL MAGNETIC RESONANCE IMAGING: A RETROSPECTIVE STUDY

Hale Öktem
Alper Dilli
Ayla Kürkçüoğlu
Handan Soysal
Canan Yazıcı
Can Pelin
Journal
Anatomy
Pages
—
Publication Date
2016-04-30
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Conclusion: In the present study, the prevalence of Chiari type I malformation was investigated in a large population, consisting of 2480 individuals, and its association with syringomyelia and scoliosis.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Objectives: Chiari malformation is characterized by caudal herniation of cerebellar tonsils from foramen magnum into the cervical canal on radiological images.
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Key Findings & Data:Type I Chiari malformation is the herniation of cerebellar tonsils more than 3 mm which does not cause any symptoms until adulthood.
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Conclusion & Impact:Conclusion: In the present study, the prevalence of Chiari type I malformation was investigated in a large population, consisting of 2480 individuals, and its association with syringomyelia and scoliosis.
🔬Design:Research Article
📍Scope:2013 Verileri
⚙️Variables:cervical magnetic resonance · Chiari type I · scoliosis

Abstract

Objectives: Chiari malformation is characterized by caudal herniation of cerebellar tonsils from foramen magnum into the cervical canal on radiological images. Type I Chiari malformation is the herniation of cerebellar tonsils more than 3 mm which does not cause any symptoms until adulthood. In this study, we aimed to investigate the prevalence of Chiari type I malformation. Methods: In this retrospective study, cervical magnetic resonance images taken between 2013 and 2015 were retrospectively analyzed. The patients were 18–70 year old males and females. Type I Chiari malformation was defined as an inferior displacement of the cerebellar tonsils more than 3 mm below the opisthion-basion line. The patients with intracranial lesions, hydrocephalus or previous craniotomy were excluded from the study. Results: The prevalence of Chiari type I malformation was found as 4% when both genders were taken into consideration. The prevalence was 3.3% in females and 0.7% in males. Chiari type I malformation was associated with syringomyelia in 0.5% of females and 0.2% of males. In the present study, concomitant syringomyelia was observed in 0.7% of the patients. On the other hand, incidence of Chiari type I malformation was found relatively higher in the patients with scoliosis (15.4%). The ratio of this co-occurrence was higher in females (11.4%) when compared to the males (4%). Conclusion: In the present study, the prevalence of Chiari type I malformation was investigated in a large population, consisting of 2480 individuals, and its association with syringomyelia and scoliosis.

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Cite This Article

Öktem, H., Dilli, A., Kürkçüoğlu, A., Soysal, H., Yazıcı, C., Pelin, C. (2016). PREVALENCE OF CHIARI TYPE I MALFORMATION ON CERVICAL MAGNETIC RESONANCE IMAGING: A RETROSPECTIVE STUDY. Anatomy, Volume: 10 Issue: 1. https://ajindex.com/articles/1190244

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