CTICasesSpontaneous Lung Torsion
Imaging findings
CT chest demonstrates a spontaneous 90-degree clockwise rotation/torsion of the right lung lobes: the right upper lobe is collapsed and rotated posteriorly, the middle lobe is rotated superiorly, and the right lower lobe has shifted anteriorly. There is associated narrowing and occlusion of the right upper lobe bronchus.
Key takeaways
Spontaneous lung torsion is an extremely rare event that typically occurs post-operatively or in the setting of trauma or massive pleural effusion. The lung rotates on its bronchovascular pedicle, which can lead to venous infarction and airway occlusion. CT showing abnormal bronchial or fissure orientation is key to diagnosis.
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