Browsing by Author "Karaaslanli, A."

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Anterior Clinoid Process in Chiari Malformation Type 2: Measurements, Classifications, Pneumatization Ratio, and Clinical Relevance
(Lippincott Williams and Wilkins, 2025) Karaaslanli, A.; Aslanoǧlu, B.; Erdem, M.Z.; Yalinkiliç, A.; Beger, B.; Şerifoǧlu, L.; Beger, O.
Objective: To reveal differences in morphologies of the anterior clinoid process (ACP) in patients with Chiari malformation type 2 (CMT2) by comparing normal subjects. Methods: Computed tomography slices of 50 CMT2 (sex: 21 females and 29 males, and mean age: 9.04±5.85 y) and 50 controls (sex: 21 females and 29 males, and mean age: 8.69±5.34 y) were included in the work. The angle (AACP), width (WACP), and length (LACP) of ACP, the width (WOS), and length (LOS) of the optic strut (OS), and the distance (DisOSACP) of OS to ACP were measured. Results: Patients with CMT2 had smaller LACP (P<0.001) and DisOSACP (P=0.007) than controls, but similar WACP, AACP, LOS, and WOS (P>0.05). ACP pneumatization was observed in 10% of CMT2s (10 ACPs) and 12% of controls (12 ACPs). CMT2 did not correlate with the pneumatization (P=0.651). Three configurations regarding ACP pneumatization were detected in CMT2 (types 0: 90%, 1: 8%, and 2: 2%) and controls (types 0: 89%, 1: 9%, and 2: 2%). Four types related to OS position were detected in CMT2 (types B: 5%, C: 30%, D: 51%, and E: 14%) and controls (types B: 3%, C: 15%, D: 69%, and E: 13%). This classification was affected by CMT2 (P=0.041). Conclusions: CMT2s have more anteriorly located OS, and shorter ACP by comparison controls. There is no association between CMT2 and the incidence of ACP pneumatization. Copyright © 2025 Mutaz B. Habal, MD. Unauthorized reproduction of this article is prohibited.
A Computed Tomography Study of the Sella Turcica in Chiari Malformation Type 2
(Lippincott Williams and Wilkins, 2025) Yalinkiliç, A.; Beger, B.; Erdem, M.Z.; Sönmez, B.; Karaaslanli, A.; Çetin, C.Ş.; Beger, O.
Objective: To reveal differences in morphology of the sella turcica (ST) in patients with Chiari malformation type 2 (CMT2) by comparison normal subjects. Methods: Computed tomography slices of 46 CMT2 (sex: 22 females and 24 males, and mean age: 8.80±5.87 y) and 46 controls (sex: 22 females and 24 males, and mean age: 8.48±5.13 y). Results: Patients with CMT2 had statistically similar ST size (its surface area, height, width, length, and diameter) to controls. Four configurations regarding Axelsson shape types were detected in CMT2s (normal sella: 71.70%, oblique anterior wall: 15.30%, irregularity: 6.50%, and pyramidal shape of the dorsum sellae: 6.50%) and controls (normal sella: 76.10%, oblique anterior wall: 10.90%, irregularity: 6.50%, and pyramidal shape of the dorsum sellae: 6.50%). Three configurations regarding Camp shape types were detected in CMT2s (oval: 28.30%, round: 67.40%, and flattened: 4.30%) and controls (oval: 26.10%, round: 71.70%, and flattened: 2.20%). CMT2 did not correlate with Axelsson (P=0.942) or Camp (P=0.804) shape types. Conclusion: The authors' computed tomography study displays that ST size and shape in CMT2s were similar to that of healthy subjects. © 2025 by Mutaz B. Habal, MD.