1. Sarcomatoid variant of urothelial carcinoma of renal pelvis with direct invasion of the pancreas and descending colon
   Yoshinori Nakano et al, 2022, IJU Case Reports CrossRef
2. Renal Urothelial Carcinoma Complicated by Inferior Vena Cava Tumor Thrombus and Acute Pyelonephritis
   Shulian Chen et al, 2021, Urology CrossRef