CTICasesLymphoma causing Chylothorax
Imaging findings
CT chest shows a large pleural effusion (chylothorax) and a paraspinal/retroperitoneal soft tissue mass obstructing the thoracic duct. A few small, scattered pulmonary cysts are present, consistent with secondary lymphoid interstitial pneumonia (LIP).
Key takeaways
Chylothorax is caused by obstruction or disruption of the thoracic duct. Malignancies, particularly lymphoma, are the most common non-traumatic cause of thoracic duct obstruction. Associated findings can include pulmonary cysts from secondary lymphoid interstitial pneumonia.
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