Özet:

Aim: Our aim was to find different radiological markers for the diagnosis of coexistence of pseudotumor cerebri and Chiari malformation Type 1. Method: Patients who were referred to the Department of Radiology with a clinical preliminary diagnosis of Chiari malformation Type 1 between 2007 and 2020 and whose diagnosis was confirmed radiologically by magnetic resonance imaging were evaluated retrospectively. 49 Chiari malformation Type 1 patients with both cervical and cerebral examinations and 49 control groups of the same age and sex without Chiari malformation Type 1 diagnosis were included in the study. Presence of pseudotumor cerebri radiologically from Cerebral MRI images of patients with Chiari malformation Type 1 diagnosis, presence of syringomyelia from cervical spinal MRI images, and distance of cerebellar tonsils and obex according to McRae line were evaluated in millimeters. Results: In cases with Chiari malformation Type 1 clinical and radiological diagnosis, patients with radiological diagnosis of pseudotumor cerebri had lower cerebellar tonsils and Obex than those who were not, and the rate of accompanying syringomyelia seemed to be higher. However, there was no statistically significant difference between the two groups. Conclusion: Coexistence of pseudotumor cerebri and Chiari malformation Type 1 was more common than expected. The treatment protocol is different in the coexistence of pseudotumor cerebri and Chiari malformation Type 1, therefore this increases the importance of diagnosing the coexistence. Further radiological imaging studies are needed to find different radiological markers in the diagnosis of pseudotumor cerebri and Chiari malformation Type 1 coexistence.

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