3433
Renal cell carcinomas constitute a particularly frequent cause of death in this disorder , occurring as bilateral and multifocal tumours , and presenting at an earlier age than in sporadic , non - familial cases of this tumour type .
 Renal cell carcinomas, bilateral and multifocal tumours, tumour
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 Renal cell carcinomas, bilateral and multifocal tumours, tumour