CTICasesExcipient Lung (Intravenous Drug Use)
Imaging findings
Profound right-sided heart failure with RV enlargement, but a seemingly unremarkable lung parenchyma on CT.
Key takeaways
Autopsy confirmed "excipient lung" caused by injection of tablets (containing cellulose/methyl cellulose). The lack of classic nodules on CT may be due to formula changes in modern medications.
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