Extension of renal mass (RM) along venous drainage pathways is a well-recognized entity. All previously reported cases of RM show inferior vena cava (IVC), left renal vein and azygous vein… Click to show full abstract
Extension of renal mass (RM) along venous drainage pathways is a well-recognized entity. All previously reported cases of RM show inferior vena cava (IVC), left renal vein and azygous vein involvement. We report a 55-year-old man who had left RM arising from the upper pole with invasion in left renal vein, IVC and hemi-azygous vein. To our knowledge, we report the first case of RM with venous extension in hemi-azygous vein.
               
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