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Objective <p>The study aimed to determine alterations in the size and pneumatization pattern of the dorsum sellae (DS) in children aged 1–18 years.</p> Methods <p>Computed tomography views of 360 subjects were included in the study. DS width (SB-W) and thickness (ML-T) were measured. The angle between DS and the floor of the hypophyseal fossa (DS-A) were measured. Furthermore, DS heights at the middle part (ML-H), at the left lateral margin (LLM-H), and at the right lateral margin (RLM-H) were measured. DS pneumatization was classified as four types: type 0: no pneumatization, type 1: pneumatization &lt; 50%, type 2: pneumatization &gt; 50%, and type 3: total pneumatization.</p> Results <p>SB-W increased up to prepubescent period (<i>p</i> &lt; 0.001), but thereafter showed no statistically significant change. RLM-H, LLM-H, and ML-H increased until the postpubescent period (<i>p</i> &lt; 0.001). ML-T showed a pattern of first decreasing and then increasing with advancing age (<i>p</i> &lt; 0.001). DS-A decreased until the postpubescent period (<i>p</i> &lt; 0.001). Four configurations related to DS pneumatization were defined as follows: type 0 in 289 cases (80.3%), type 1 in 57 cases (15.8%), type 2 in 10 cases (2.8%), and type 3 in four cases (1.1%). The incidence of DS pneumatization was affected by age (<i>p</i> &lt; 0.001), but not sex (<i>p</i> = 0.596).</p> Conclusions <p>DS dimensions continue to change up to adulthood, likely due to increasing pneumatization. DS anatomy should be considered by neurosurgeons to reduce the risk of complications while performing posterior clinoidectomy.</p>

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Development of the dorsum sellae in children: a CT study

  • 期刊论文

  • 发表日期：

    2026年2月11日

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  • Ali Atadağ,
  • Ceyda Şevval Çetin,
  • Zeynep Şencan,
  • Aslıhan Artaş,
  • Firdevs Aşantoğrol,
  • Serdar Sönmezışık,
  • Ömer Faruk Cihan,
  • Orhan Beger

摘要

Objective

The study aimed to determine alterations in the size and pneumatization pattern of the dorsum sellae (DS) in children aged 1–18 years.

Methods

Computed tomography views of 360 subjects were included in the study. DS width (SB-W) and thickness (ML-T) were measured. The angle between DS and the floor of the hypophyseal fossa (DS-A) were measured. Furthermore, DS heights at the middle part (ML-H), at the left lateral margin (LLM-H), and at the right lateral margin (RLM-H) were measured. DS pneumatization was classified as four types: type 0: no pneumatization, type 1: pneumatization < 50%, type 2: pneumatization > 50%, and type 3: total pneumatization.

Results

SB-W increased up to prepubescent period (p < 0.001), but thereafter showed no statistically significant change. RLM-H, LLM-H, and ML-H increased until the postpubescent period (p < 0.001). ML-T showed a pattern of first decreasing and then increasing with advancing age (p < 0.001). DS-A decreased until the postpubescent period (p < 0.001). Four configurations related to DS pneumatization were defined as follows: type 0 in 289 cases (80.3%), type 1 in 57 cases (15.8%), type 2 in 10 cases (2.8%), and type 3 in four cases (1.1%). The incidence of DS pneumatization was affected by age (p < 0.001), but not sex (p = 0.596).

Conclusions

DS dimensions continue to change up to adulthood, likely due to increasing pneumatization. DS anatomy should be considered by neurosurgeons to reduce the risk of complications while performing posterior clinoidectomy.