Sunitinib: An Unusual Cause of Pneumothorax in a Patient With Metastatic Chromophobe Renal Cell Carcinoma.

Spontaneous pneumothorax secondary to sunitinib, a vascular endothelial growth factor receptor (VEGFR) inhibitor, is an extremely rare side effect of this class of medications. In this report, we present the case of a patient with metastatic renal cell carcinoma (RCC) who developed bilateral pneumothoraces after starting on sunitinib. This case report recognizes pneumothorax as a life-threatening side effect of sunitinib.