Cases
60-year-old man with sudden weight loss   

Additional images

Additional images are provided below. Click to enlarge.

Which of the following is the third most common renal cell carcinoma subtype?
Chromophobe
Papillary
Oncocytoma
Tubulocystic

Which mutation is most commonly seen in this lesion?
BRAF
KRAS
PTEN
TP53

What secondary pattern is seen in the top image?
Rhabdoid
Sarcomatoid