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An unusual foramen in the transverse process of first thoracic vertebra

Monika Gupta1, Sneh Agarwal, Shipra Paul

  • 1Department of Anatomy, Lady Hardinge Medical College, New Delhi, India. sanjaymittal.uro@gmail.com

Anatomical Science International
|July 10, 2012
PubMed

Insights

A rare anatomical variation, a complete foramen was found in the first thoracic vertebra's transverse process. This finding, near the cervical foramina transversaria, has significant implications for medical imaging and surgery.

Area of Science:

  • Anatomy
  • Embryology
  • Radiology

Background:

  • Cervical vertebrae characteristically possess foramina in their transverse processes, transmitting the vertebral artery.
  • Thoracic vertebrae typically articulate with ribs via facets on their bodies and transverse processes.

Observation:

  • A rare complete foramen was identified in the left transverse process of a first thoracic vertebra.
  • This foramen was located near the root of the transverse process, aligning with the ipsilateral cervical foramina transversaria.

Findings:

  • The presence of a foramen in the transverse process of a thoracic vertebra is an uncommon anatomical variation.
  • This finding is embryologically explained by developmental events involving dorsal aorta branches.

Implications:

  • Accurate interpretation of radiological images, including CT and MR angiographies, may be enhanced by knowledge of this variation.
  • Surgical management in the thoracic region may benefit from awareness of this rare anatomical finding.

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