2020-30 / July 27 (Contributors: Salvatore E. Mignano and Daniel H. Russell)
50-year-old male with a 10.8-cm right mid pole kidney mass and lymph nodes suspicious for metastasis.
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1. What is the correct diagnosis in the lymph node?
a. Metastatic sarcomatoid renal cell carcinoma
c. Vascular transformation of lymph node sinuses
d. Metastatic clear cell renal cell carcinoma
e. Kaposi sarcoma
2. What IHC stain is supporting the diagnosis (pictured)?