[Imaging aspects of sphenoid during development]

Area of Science:

• Pediatric Radiology
• Craniofacial Anatomy
• Developmental Biology

Background:

• The sphenoid bone's ossification and pneumatization are complex developmental processes.
• Normal variations in these processes can mimic pathological findings.
• Accurate assessment requires understanding typical developmental timelines.

Purpose of the Study:

• To delineate the sequential stages of sphenoid bone ossification and pneumatization in pediatric patients.
• To highlight normal anatomical variations in sphenoid development.
• To provide a reference for evaluating craniofacial abnormalities.

Main Methods:

• Retrospective analysis of CT and MRI scans from children up to 15 years old.
• Scans were selected from patients with various craniofacial conditions, excluding those with suspected cranial growth disturbances.
• Focus on demonstrating ossification, synchondroses closure, and pneumatization patterns.

Main Results:

• Detailed visualization of the progressive ossification of the sphenoid bone.
• Demonstration of the typical sequence of synchondroses closure.
• Illustration of the varying patterns and extent of sphenoid pneumatization.
• Examples of congenital abnormalities affecting sphenoid development were presented.

Conclusions:

• Knowledge of normal sphenoid ossification and pneumatization is crucial for accurate diagnosis.
• Essential for evaluating traumatic injuries and congenital malformations of the craniofacial region.
• Valuable for identifying bone dysplasias and marrow diseases, including tumors and hematologic disorders.