CTICasesMicroembolization of Lipiodol during Lymphangiography
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Imaging findings
CT showed high attenuation material in the left lung, particularly along the pleural surfaces, subtly outlining septa, and also observed in the lower right lobe. Contrast was visible in the region of the thoracic duct and lymphatics.
Key takeaways
During lymphangiography for thoracic duct embolization, especially when injecting inguinal lymph nodes, inadvertent intravasation of Lipiodol contrast into small veins can occur. This leads to microembolization of the Lipiodol into the pulmonary capillaries, depositing along the pleural surfaces and outlining pulmonary lymphatics or lobules. This phenomenon can mimic calcification or other dense material in the dependent lung areas.
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