CTICasesPoland Syndrome
Imaging findings
Chest radiograph shows a hyperlucent left hemithorax with a high axillary fold. Chest CT confirms complete congenital absence of the left pectoralis major and minor muscles, without associated rib anomalies.
Key takeaways
Poland syndrome is a congenital anomaly characterized by unilateral absence or hypoplasia of the pectoralis muscles, often associated with ipsilateral syndactyly or chest wall deformities. On chest radiographs, the absence of muscle bulk causes unilateral hyperlucency. Standard physical maneuvers (tensing the muscle) help clinically confirm the diagnosis, which is easily visualized on CT.
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