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Sutures of the Skull01:22

Sutures of the Skull

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The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
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The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
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Cranial Bones: Superior and Posterior View01:14

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The superior view of the cranium shows the frontal and paired parietal bones.
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Overview of the Skull01:08

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The cranium (skull) is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the brain case, or cranial vault. The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws.
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Bone Formation by Intramembranous Ossification01:29

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Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
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Increased Intracranial Pressure ll: Pathophysiology01:29

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Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins...
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Related Experiment Video

Updated: May 6, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
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Craniosynostosis : correlation with cranial vault shape and osseous defects.

Ch Damianidis1, V Kyriakou, N Vachtsevanos

  • 1Department of Neuroradiology, Papageorgiou General Hospital; Thessalonki, Greece - tsitouridis@papageorgiou-hospital.gr.

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Summary

Three-dimensional computed tomography (3D CT) effectively diagnoses craniosynostosis in children. This imaging technique also identifies associated osseous defects in the cranial vault, aiding in surgical planning.

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Area of Science:

  • Medical Imaging
  • Pediatric Surgery
  • Radiology

Background:

  • Craniosynostosis, the premature fusion of cranial sutures, affects infant skull development.
  • Accurate diagnosis and characterization of bony abnormalities are crucial for effective management.
  • Three-dimensional computed tomography (3D CT) offers advanced visualization of complex skeletal structures.

Purpose of the Study:

  • To evaluate the diagnostic utility of 3D CT in identifying craniosynostosis in pediatric patients.
  • To correlate cranial deformities with the presence of osseous defects in the cranial vault.
  • To assess the reliability of 3D CT in detecting these abnormalities.

Main Methods:

  • One hundred and two children with suspected craniosynostosis underwent spiral CT with 3D reconstruction.
  • Shaded Surface Display (SSD) and Volume Rendering (VR) algorithms were used for 3D visualization.
  • Osseous defects were evaluated and correlated with craniosynostosis type and cranial vault shape.

Main Results:

  • 3D CT successfully diagnosed craniosynostosis in all evaluated patients.
  • All patients presented with combined forms of craniosynostosis.
  • Osseous defects were identified in 56 patients, with specific findings noted for scaphocephaly, plagiocephaly, and trigonocephaly.

Conclusions:

  • 3D CT is a safe and reliable method for diagnosing craniosynostosis in children.
  • The technique effectively identifies associated osseous defects in the cranial vault.
  • 3D CT aids in comprehensive assessment for surgical planning in pediatric craniosynostosis cases.