The CXR shows a right accessory rib, which is arising from the seventh cervical vertebra (Fig. 79.2). This condition is present in 1% of the population with 80% of cases being bilateral. Rarely, this condition may be symptomatic due to pressure on the lower trunk of the brachial plexus.
Case 80. This elderly male chronic smoker had a five-year history of productive cough and exertional dyspnea. His CXR is shown (Fig. 80.1).
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