CTICasesInvasive Mucinous Adenocarcinoma
Imaging findings
CT chest shows persistent, bilateral areas of consolidation and ground-glass opacities with crazy-paving pattern and nodular margins, mimicking multifocal COVID-19 or organizing pneumonia. Biopsy confirmed invasive mucinous adenocarcinoma.
Key takeaways
Invasive mucinous adenocarcinoma (formerly mucinous BAC) classically presents as persistent consolidations or ground-glass opacities that fail to clear with antibiotics. It can mimic infectious pneumonia (like COVID-19) or organizing pneumonia, and a history of chronicity is a key clue to the correct diagnosis.
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