Acute Thoracic Outlet Syndrome Associated with Congenital Pseudarthrosis of the First Rib: A Case Report.

Case: A 15-year-old right-hand-dominant adolescent girl presented with a nondisplaced first rib fracture and evidence of mesoacromion. She reported radiating numbness, pain, temperature change, and paresthesia in her left arm. An MRI revealed a first rib fracture along with brachial plexus and scalene musculature inflammation. Follow-up radiographs demonstrated bilateral rib anomalies during routine comparison views.
Conclusion: Congenital pseudarthrosis of the first rib occurs but is not well documented in the literature. This case report describes a case of congenital bilateral first rib pseudarthrosis with associated thoracic outlet syndrome symptoms in a competitive female softball athlete.
Competing Interests: Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/JBJSCC/B478).
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