Multi-detector-row computed tomography imaging of variant skull base foramina

Area of Science:

• Anatomy
• Radiology
• Medical Imaging

Background:

• Skull base foramina are anatomical structures crucial for neurovascular transmission.
• Inconstant foramina represent anatomical variations that may be overlooked.
• Multi-detector-row computed tomography (MDCT) offers high-resolution imaging for detailed anatomical assessment.

Purpose of the Study:

• To identify and describe various inconstant skull base foramina.
• To illustrate the MDCT features of these foramina.
• To discuss the potential clinical significance and associated anomalies of these variant foramina.

Main Methods:

• Review of multi-detector-row computed tomographic (MDCT) studies.
• Identification and characterization of specific inconstant skull base foramina.
• Correlation of imaging findings with anatomical knowledge.

Main Results:

• Several inconstant skull base foramina were identified, including the meningo-orbital foramen, foramen of Vesalius, canaliculus innominatus, palatovaginal canal, persistent craniopharyngeal canal, transsphenoidal canal, canalis basilaris medianus, and fossa navicularis.
• MDCT demonstrated characteristic features for each identified foramen.
• The presence of these foramina can be associated with anomalies and clinical implications.

Conclusions:

• Inconstant skull base foramina are identifiable on MDCT.
• Radiologists should be aware of these variant foramina and their potential clinical relevance.
• MDCT is a valuable tool for the detailed evaluation of skull base anatomy and its variations.