CTICasesLeft Lung Torsion secondary to Mucinous Adenocarcinoma
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Imaging findings
Initial CT showed a very large, consolidated, hepatized mass in the left upper lobe with mediastinal mass effect. A follow-up CT days later demonstrated resolution of the upper lobe mass and a new mass in the left lower lobe with a small pleural effusion. The left hilum exhibited kinking of the pulmonary artery, occluded pulmonary veins, and an occluded left main bronchus, with characteristic swirling of the vessels and bronchi at the hilum.
Key takeaways
Lung torsion is a rare but critical diagnosis, especially in non-surgical patients, often associated with conditions that increase lung mobility or weight (e.g., large effusions, heavy tumors). Imaging features include a change in lobe location, consolidation/opacification of the affected lobe, and characteristic swirling or tapering of the hilar vessels and bronchi. Prompt diagnosis and surgical intervention are crucial.
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