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Continuing yesterdays theme. Renal bx from a mass in a 55 yo. This one showed more stroma and the nuclei lining the cysts were less "ugly". Continued 👇#GUpath 
Mass was resected and was <4 cm and well circumscribed. 👇
Always run an FH stain (pic) on anything that looks tubulocystic . This was also positive for CK7, P504S and neg for CAIX and CD117.
Final diagnosis: Tubulocystic RCC
Continued 👇
Final diagnosis: Tubulocystic RCC
Continued 👇
