CTICasesMucinous Adenocarcinoma with Aerogenous Spread
Imaging findings
Chest radiograph and CT show a large, lobulated consolidation in the right middle lobe. High-resolution CT shows multiple bilateral small, round, and cavitary (Cheerios-like) nodules throughout the upper and lower lobes, which are FDG-avid on PET/CT. Biopsy of a nodule confirms mucinous adenocarcinoma.
Key takeaways
Mucinous adenocarcinoma of the lung can disseminate via the airways (aerogenous spread), presenting as multi-lobar consolidations and small, cavitary 'Cheerios-like' nodules in both lungs. These lesions can mimic chronic inflammatory or infectious processes like lipoid pneumonia, making biopsy essential for diagnosis.
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