CTICasesEndobronchial Metastasis from Renal Cell Carcinoma
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Imaging findings
CT imaging reveals a lobular soft tissue mass completely obstructing the right upper lobe bronchus, resulting in lobar volume loss and a classic "finger-in-glove" mucoid impaction distal to the obstruction. The patient had a history of renal cell carcinoma resected eight years prior.
Key takeaways
Renal cell carcinoma has a propensity for late recurrence and can manifest as a solitary endobronchial metastasis many years after initial nephrectomy. Obstruction of a major bronchus leads to distal mucoid impaction, producing the characteristic finger-in-glove sign on imaging.
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