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Cervical rib variant: report of a case
L M Kosenak1, E J Knorr, J J DeRojas
1Department of Surgery, Nesbitt Memorial Hospital, Kingston, Pennsylvania.
Annals of Vascular Surgery
|May 1, 1992
Summary
A cervical rib can split the brachial plexus, contrary to common teaching. This anatomical variation highlights the importance of considering atypical presentations in clinical practice.
Area of Science:
- Anatomy
- Clinical Medicine
- Surgical Anatomy
Background:
- The typical understanding is that the brachial plexus and subclavian vessels invariably arch over a cervical rib.
- Cervical ribs are anatomical variations that can lead to thoracic outlet syndrome.
Observation:
- A case study is presented that challenges the conventional anatomical understanding of cervical rib anomalies.
- The specific case involved a detailed examination of the relationship between a cervical rib and surrounding neurovascular structures.
Findings:
- The brachial plexus, a network of nerves originating from the spinal cord, may be divided or split by the presence of a cervical rib.
- This finding contradicts the widely accepted anatomical teaching regarding the course of the brachial plexus over cervical ribs.
Implications:
- This case emphasizes the need for clinicians to consider atypical anatomical arrangements when diagnosing and treating conditions related to cervical ribs.
- Understanding potential brachial plexus splitting by cervical ribs is crucial for accurate diagnosis and surgical planning in thoracic outlet syndrome.